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Finding the Fourth Proportional to 19,164.51, 28,746.63 and 5,313.51

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Solution

The fourth proportional to 19,164.51, 28,746.63 and 5,313.51 is: 7,970.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,164.51 : 28,746.63 = 5,313.51 : x
  2. Step 2: Convert to fraction form
    19,164.51/28,746.63 = 5,313.51/x
  3. Step 3: Cross multiply
    19,164.51x = 28,746.63 × 5,313.51
  4. Step 4: Simplify right side
    19,164.51x = 152,745,505.97
  5. Step 5: Solve for x
    x = 152,745,505.97/19,164.51
  6. Step 6: Final answer
    x = 7,970.23

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