Finding the Fourth Proportional to 13,127.52, 19,681.56 and 7,932.18

Step by Step Solution

1. Step 1: Write the proportion equation
   13,127.52 : 19,681.56 = 7,932.18 : x
2. Step 2: Convert to fraction form
   13,127.52/19,681.56 = 7,932.18/x
3. Step 3: Cross multiply
   13,127.52x = 19,681.56 × 7,932.18
4. Step 4: Simplify right side
   13,127.52x = 156,117,676.60
5. Step 5: Solve for x
   x = 156,117,676.60/13,127.52
6. Step 6: Final answer
   x = 11,892.40