Finding the Fourth Proportional to 74,287.24, 102,505.54 and 42,449.98

Step by Step Solution

1. Step 1: Write the proportion equation
   74,287.24 : 102,505.54 = 42,449.98 : x
2. Step 2: Convert to fraction form
   74,287.24/102,505.54 = 42,449.98/x
3. Step 3: Cross multiply
   74,287.24x = 102,505.54 × 42,449.98
4. Step 4: Simplify right side
   74,287.24x = 4,351,358,122.89
5. Step 5: Solve for x
   x = 4,351,358,122.89/74,287.24
6. Step 6: Final answer
   x = 58,574.77