Finding the Fourth Proportional to 25,131.72, 34,681.14 and 13,953

Step by Step Solution

1. Step 1: Write the proportion equation
   25,131.72 : 34,681.14 = 13,953 : x
2. Step 2: Convert to fraction form
   25,131.72/34,681.14 = 13,953/x
3. Step 3: Cross multiply
   25,131.72x = 34,681.14 × 13,953
4. Step 4: Simplify right side
   25,131.72x = 483,905,946.42
5. Step 5: Solve for x
   x = 483,905,946.42/25,131.72
6. Step 6: Final answer
   x = 19,254.79