Finding the Fourth Proportional to 10,134.73, 13,979.10 and 8,806.15

Step by Step Solution

1. Step 1: Write the proportion equation
   10,134.73 : 13,979.10 = 8,806.15 : x
2. Step 2: Convert to fraction form
   10,134.73/13,979.10 = 8,806.15/x
3. Step 3: Cross multiply
   10,134.73x = 13,979.10 × 8,806.15
4. Step 4: Simplify right side
   10,134.73x = 123,102,051.47
5. Step 5: Solve for x
   x = 123,102,051.47/10,134.73
6. Step 6: Final answer
   x = 12,146.55