Finding the Fourth Proportional to 60,981.45, 91,469.42 and 25,428.12

Step by Step Solution

1. Step 1: Write the proportion equation
   60,981.45 : 91,469.42 = 25,428.12 : x
2. Step 2: Convert to fraction form
   60,981.45/91,469.42 = 25,428.12/x
3. Step 3: Cross multiply
   60,981.45x = 91,469.42 × 25,428.12
4. Step 4: Simplify right side
   60,981.45x = 2,325,895,388.09
5. Step 5: Solve for x
   x = 2,325,895,388.09/60,981.45
6. Step 6: Final answer
   x = 38,141.03