Finding the Fourth Proportional to 25,499.31, 35,205.99 and 15,953.58

Step by Step Solution

1. Step 1: Write the proportion equation
   25,499.31 : 35,205.99 = 15,953.58 : x
2. Step 2: Convert to fraction form
   25,499.31/35,205.99 = 15,953.58/x
3. Step 3: Cross multiply
   25,499.31x = 35,205.99 × 15,953.58
4. Step 4: Simplify right side
   25,499.31x = 561,661,577.94
5. Step 5: Solve for x
   x = 561,661,577.94/25,499.31
6. Step 6: Final answer
   x = 22,026.54