Finding the Fourth Proportional to 25,128.47, 34,670.21 and 16,181.15

Step by Step Solution

1. Step 1: Write the proportion equation
   25,128.47 : 34,670.21 = 16,181.15 : x
2. Step 2: Convert to fraction form
   25,128.47/34,670.21 = 16,181.15/x
3. Step 3: Cross multiply
   25,128.47x = 34,670.21 × 16,181.15
4. Step 4: Simplify right side
   25,128.47x = 561,003,614.28
5. Step 5: Solve for x
   x = 561,003,614.28/25,128.47
6. Step 6: Final answer
   x = 22,325.42