Finding the Fourth Proportional to 25,092.69, 34,541 and 21,688.15

Step by Step Solution

1. Step 1: Write the proportion equation
   25,092.69 : 34,541 = 21,688.15 : x
2. Step 2: Convert to fraction form
   25,092.69/34,541 = 21,688.15/x
3. Step 3: Cross multiply
   25,092.69x = 34,541 × 21,688.15
4. Step 4: Simplify right side
   25,092.69x = 749,130,389.15
5. Step 5: Solve for x
   x = 749,130,389.15/25,092.69
6. Step 6: Final answer
   x = 29,854.53