Finding the Fourth Proportional to 12,510.76, 18,766.18 and 10,159.61

Step by Step Solution

1. Step 1: Write the proportion equation
   12,510.76 : 18,766.18 = 10,159.61 : x
2. Step 2: Convert to fraction form
   12,510.76/18,766.18 = 10,159.61/x
3. Step 3: Cross multiply
   12,510.76x = 18,766.18 × 10,159.61
4. Step 4: Simplify right side
   12,510.76x = 190,657,091.51
5. Step 5: Solve for x
   x = 190,657,091.51/12,510.76
6. Step 6: Final answer
   x = 15,239.45