Finding the Fourth Proportional to 73,920.48, 102,008.68 and 42,088.92

Step by Step Solution

1. Step 1: Write the proportion equation
   73,920.48 : 102,008.68 = 42,088.92 : x
2. Step 2: Convert to fraction form
   73,920.48/102,008.68 = 42,088.92/x
3. Step 3: Cross multiply
   73,920.48x = 102,008.68 × 42,088.92
4. Step 4: Simplify right side
   73,920.48x = 4,293,435,171.83
5. Step 5: Solve for x
   x = 4,293,435,171.83/73,920.48
6. Step 6: Final answer
   x = 58,081.81