Finding the Fourth Proportional to 88,684.10, 133,026.15 and 42,028.10

Step by Step Solution

1. Step 1: Write the proportion equation
   88,684.10 : 133,026.15 = 42,028.10 : x
2. Step 2: Convert to fraction form
   88,684.10/133,026.15 = 42,028.10/x
3. Step 3: Cross multiply
   88,684.10x = 133,026.15 × 42,028.10
4. Step 4: Simplify right side
   88,684.10x = 5,590,836,334.82
5. Step 5: Solve for x
   x = 5,590,836,334.82/88,684.10
6. Step 6: Final answer
   x = 63,042.15