Finding the Fourth Proportional to 19,141.63, 28,710.16 and 5,102.71

Step by Step Solution

1. Step 1: Write the proportion equation
   19,141.63 : 28,710.16 = 5,102.71 : x
2. Step 2: Convert to fraction form
   19,141.63/28,710.16 = 5,102.71/x
3. Step 3: Cross multiply
   19,141.63x = 28,710.16 × 5,102.71
4. Step 4: Simplify right side
   19,141.63x = 146,499,536.00
5. Step 5: Solve for x
   x = 146,499,536.00/19,141.63
6. Step 6: Final answer
   x = 7,653.45