Finding the Fourth Proportional to 60,978.45, 91,464.92 and 25,425.12

Step by Step Solution

1. Step 1: Write the proportion equation
   60,978.45 : 91,464.92 = 25,425.12 : x
2. Step 2: Convert to fraction form
   60,978.45/91,464.92 = 25,425.12/x
3. Step 3: Cross multiply
   60,978.45x = 91,464.92 × 25,425.12
4. Step 4: Simplify right side
   60,978.45x = 2,325,506,566.79
5. Step 5: Solve for x
   x = 2,325,506,566.79/60,978.45
6. Step 6: Final answer
   x = 38,136.53