Finding the Fourth Proportional to 12,100.13, 16,686.54 and 7,849.63

Step by Step Solution

1. Step 1: Write the proportion equation
   12,100.13 : 16,686.54 = 7,849.63 : x
2. Step 2: Convert to fraction form
   12,100.13/16,686.54 = 7,849.63/x
3. Step 3: Cross multiply
   12,100.13x = 16,686.54 × 7,849.63
4. Step 4: Simplify right side
   12,100.13x = 130,983,081.55
5. Step 5: Solve for x
   x = 130,983,081.55/12,100.13
6. Step 6: Final answer
   x = 10,824.94