Finding the Fourth Proportional to 93,078.30, 138,564.70 and 92,524.72

Step by Step Solution

1. Step 1: Write the proportion equation
   93,078.30 : 138,564.70 = 92,524.72 : x
2. Step 2: Convert to fraction form
   93,078.30/138,564.70 = 92,524.72/x
3. Step 3: Cross multiply
   93,078.30x = 138,564.70 × 92,524.72
4. Step 4: Simplify right side
   93,078.30x = 12,820,660,069.38
5. Step 5: Solve for x
   x = 12,820,660,069.38/93,078.30
6. Step 6: Final answer
   x = 137,740.59