Finding the Fourth Proportional to 74,308.78, 102,553.32 and 42,471.62

Step by Step Solution

1. Step 1: Write the proportion equation
   74,308.78 : 102,553.32 = 42,471.62 : x
2. Step 2: Convert to fraction form
   74,308.78/102,553.32 = 42,471.62/x
3. Step 3: Cross multiply
   74,308.78x = 102,553.32 × 42,471.62
4. Step 4: Simplify right side
   74,308.78x = 4,355,605,636.78
5. Step 5: Solve for x
   x = 4,355,605,636.78/74,308.78
6. Step 6: Final answer
   x = 58,614.95