Finding the Fourth Proportional to 74,233.97, 102,443.03 and 42,402.79

Step by Step Solution

1. Step 1: Write the proportion equation
   74,233.97 : 102,443.03 = 42,402.79 : x
2. Step 2: Convert to fraction form
   74,233.97/102,443.03 = 42,402.79/x
3. Step 3: Cross multiply
   74,233.97x = 102,443.03 × 42,402.79
4. Step 4: Simplify right side
   74,233.97x = 4,343,870,363.10
5. Step 5: Solve for x
   x = 4,343,870,363.10/74,233.97
6. Step 6: Final answer
   x = 58,515.94