Finding the Fourth Proportional to 60,915.50, 91,386.69 and 25,885.10

Step by Step Solution

1. Step 1: Write the proportion equation
   60,915.50 : 91,386.69 = 25,885.10 : x
2. Step 2: Convert to fraction form
   60,915.50/91,386.69 = 25,885.10/x
3. Step 3: Cross multiply
   60,915.50x = 91,386.69 × 25,885.10
4. Step 4: Simplify right side
   60,915.50x = 2,365,553,609.32
5. Step 5: Solve for x
   x = 2,365,553,609.32/60,915.50
6. Step 6: Final answer
   x = 38,833.36