Finding the Fourth Proportional to 74,088.18, 102,235.89 and 42,255.06

Step by Step Solution

1. Step 1: Write the proportion equation
   74,088.18 : 102,235.89 = 42,255.06 : x
2. Step 2: Convert to fraction form
   74,088.18/102,235.89 = 42,255.06/x
3. Step 3: Cross multiply
   74,088.18x = 102,235.89 × 42,255.06
4. Step 4: Simplify right side
   74,088.18x = 4,319,983,666.10
5. Step 5: Solve for x
   x = 4,319,983,666.10/74,088.18
6. Step 6: Final answer
   x = 58,308.68