Finding the Fourth Proportional to 88,787.92, 133,216.80 and 42,080.08

Step by Step Solution

1. Step 1: Write the proportion equation
   88,787.92 : 133,216.80 = 42,080.08 : x
2. Step 2: Convert to fraction form
   88,787.92/133,216.80 = 42,080.08/x
3. Step 3: Cross multiply
   88,787.92x = 133,216.80 × 42,080.08
4. Step 4: Simplify right side
   88,787.92x = 5,605,773,601.34
5. Step 5: Solve for x
   x = 5,605,773,601.34/88,787.92
6. Step 6: Final answer
   x = 63,136.67