Finding the Fourth Proportional to 25,409.61, 35,061.12 and 15,971.49

Step by Step Solution

1. Step 1: Write the proportion equation
   25,409.61 : 35,061.12 = 15,971.49 : x
2. Step 2: Convert to fraction form
   25,409.61/35,061.12 = 15,971.49/x
3. Step 3: Cross multiply
   25,409.61x = 35,061.12 × 15,971.49
4. Step 4: Simplify right side
   25,409.61x = 559,978,327.47
5. Step 5: Solve for x
   x = 559,978,327.47/25,409.61
6. Step 6: Final answer
   x = 22,038.05