Finding the Fourth Proportional to 143,092.28, 197,457.47 and 79,425.06

Step by Step Solution

1. Step 1: Write the proportion equation
   143,092.28 : 197,457.47 = 79,425.06 : x
2. Step 2: Convert to fraction form
   143,092.28/197,457.47 = 79,425.06/x
3. Step 3: Cross multiply
   143,092.28x = 197,457.47 × 79,425.06
4. Step 4: Simplify right side
   143,092.28x = 15,683,071,498.72
5. Step 5: Solve for x
   x = 15,683,071,498.72/143,092.28
6. Step 6: Final answer
   x = 109,601.10