Finding the Fourth Proportional to 12,108.56, 16,711.78 and 10,088.76

Step by Step Solution

1. Step 1: Write the proportion equation
   12,108.56 : 16,711.78 = 10,088.76 : x
2. Step 2: Convert to fraction form
   12,108.56/16,711.78 = 10,088.76/x
3. Step 3: Cross multiply
   12,108.56x = 16,711.78 × 10,088.76
4. Step 4: Simplify right side
   12,108.56x = 168,601,137.59
5. Step 5: Solve for x
   x = 168,601,137.59/12,108.56
6. Step 6: Final answer
   x = 13,924.13