Finding the Fourth Proportional to 115,061.39, 158,746.66 and 67,280.90

Step by Step Solution

1. Step 1: Write the proportion equation
   115,061.39 : 158,746.66 = 67,280.90 : x
2. Step 2: Convert to fraction form
   115,061.39/158,746.66 = 67,280.90/x
3. Step 3: Cross multiply
   115,061.39x = 158,746.66 × 67,280.90
4. Step 4: Simplify right side
   115,061.39x = 10,680,618,385.46
5. Step 5: Solve for x
   x = 10,680,618,385.46/115,061.39
6. Step 6: Final answer
   x = 92,825.39