Finding the Fourth Proportional to 18,884.83, 26,061.71 and 10,387.31

Step by Step Solution

1. Step 1: Write the proportion equation
   18,884.83 : 26,061.71 = 10,387.31 : x
2. Step 2: Convert to fraction form
   18,884.83/26,061.71 = 10,387.31/x
3. Step 3: Cross multiply
   18,884.83x = 26,061.71 × 10,387.31
4. Step 4: Simplify right side
   18,884.83x = 270,711,060.90
5. Step 5: Solve for x
   x = 270,711,060.90/18,884.83
6. Step 6: Final answer
   x = 14,334.84