Finding the Fourth Proportional to 25,092.84, 34,613.69 and 15,645

Step by Step Solution

1. Step 1: Write the proportion equation
   25,092.84 : 34,613.69 = 15,645 : x
2. Step 2: Convert to fraction form
   25,092.84/34,613.69 = 15,645/x
3. Step 3: Cross multiply
   25,092.84x = 34,613.69 × 15,645
4. Step 4: Simplify right side
   25,092.84x = 541,531,101.83
5. Step 5: Solve for x
   x = 541,531,101.83/25,092.84
6. Step 6: Final answer
   x = 21,581.10