Finding the Fourth Proportional to 12,061.52, 16,648.20 and 7,345.76

Step by Step Solution

1. Step 1: Write the proportion equation
   12,061.52 : 16,648.20 = 7,345.76 : x
2. Step 2: Convert to fraction form
   12,061.52/16,648.20 = 7,345.76/x
3. Step 3: Cross multiply
   12,061.52x = 16,648.20 × 7,345.76
4. Step 4: Simplify right side
   12,061.52x = 122,293,681.63
5. Step 5: Solve for x
   x = 122,293,681.63/12,061.52
6. Step 6: Final answer
   x = 10,139.16