Finding the Fourth Proportional to 88,805.80, 133,143.12 and 42,004

Step by Step Solution

1. Step 1: Write the proportion equation
   88,805.80 : 133,143.12 = 42,004 : x
2. Step 2: Convert to fraction form
   88,805.80/133,143.12 = 42,004/x
3. Step 3: Cross multiply
   88,805.80x = 133,143.12 × 42,004
4. Step 4: Simplify right side
   88,805.80x = 5,592,543,612.48
5. Step 5: Solve for x
   x = 5,592,543,612.48/88,805.80
6. Step 6: Final answer
   x = 62,974.98