Finding the Fourth Proportional to 74,404.02, 102,685.95 and 42,577.50

Step by Step Solution

1. Step 1: Write the proportion equation
   74,404.02 : 102,685.95 = 42,577.50 : x
2. Step 2: Convert to fraction form
   74,404.02/102,685.95 = 42,577.50/x
3. Step 3: Cross multiply
   74,404.02x = 102,685.95 × 42,577.50
4. Step 4: Simplify right side
   74,404.02x = 4,372,111,036.13
5. Step 5: Solve for x
   x = 4,372,111,036.13/74,404.02
6. Step 6: Final answer
   x = 58,761.76