Finding the Fourth Proportional to 25,131.82, 34,679.29 and 15,059.99

Step by Step Solution

1. Step 1: Write the proportion equation
   25,131.82 : 34,679.29 = 15,059.99 : x
2. Step 2: Convert to fraction form
   25,131.82/34,679.29 = 15,059.99/x
3. Step 3: Cross multiply
   25,131.82x = 34,679.29 × 15,059.99
4. Step 4: Simplify right side
   25,131.82x = 522,269,837.89
5. Step 5: Solve for x
   x = 522,269,837.89/25,131.82
6. Step 6: Final answer
   x = 20,781.22