Finding the Fourth Proportional to 13,124.52, 19,677.06 and 7,929.18

Step by Step Solution

1. Step 1: Write the proportion equation
   13,124.52 : 19,677.06 = 7,929.18 : x
2. Step 2: Convert to fraction form
   13,124.52/19,677.06 = 7,929.18/x
3. Step 3: Cross multiply
   13,124.52x = 19,677.06 × 7,929.18
4. Step 4: Simplify right side
   13,124.52x = 156,022,950.61
5. Step 5: Solve for x
   x = 156,022,950.61/13,124.52
6. Step 6: Final answer
   x = 11,887.90