Finding the Fourth Proportional to 74,086.62, 102,238.50 and 42,256.04

Step by Step Solution

1. Step 1: Write the proportion equation
   74,086.62 : 102,238.50 = 42,256.04 : x
2. Step 2: Convert to fraction form
   74,086.62/102,238.50 = 42,256.04/x
3. Step 3: Cross multiply
   74,086.62x = 102,238.50 × 42,256.04
4. Step 4: Simplify right side
   74,086.62x = 4,320,194,145.54
5. Step 5: Solve for x
   x = 4,320,194,145.54/74,086.62
6. Step 6: Final answer
   x = 58,312.74