Finding the Fourth Proportional to 88,712.10, 133,068.15 and 42,056.10

Step by Step Solution

1. Step 1: Write the proportion equation
   88,712.10 : 133,068.15 = 42,056.10 : x
2. Step 2: Convert to fraction form
   88,712.10/133,068.15 = 42,056.10/x
3. Step 3: Cross multiply
   88,712.10x = 133,068.15 × 42,056.10
4. Step 4: Simplify right side
   88,712.10x = 5,596,327,423.22
5. Step 5: Solve for x
   x = 5,596,327,423.22/88,712.10
6. Step 6: Final answer
   x = 63,084.15