Finding the Fourth Proportional to 25,068.17, 37,581.50 and 13,215.31

Step by Step Solution

1. Step 1: Write the proportion equation
   25,068.17 : 37,581.50 = 13,215.31 : x
2. Step 2: Convert to fraction form
   25,068.17/37,581.50 = 13,215.31/x
3. Step 3: Cross multiply
   25,068.17x = 37,581.50 × 13,215.31
4. Step 4: Simplify right side
   25,068.17x = 496,651,111.85
5. Step 5: Solve for x
   x = 496,651,111.85/25,068.17
6. Step 6: Final answer
   x = 19,812.02