Finding the Fourth Proportional to 10,117.10, 13,955.57 and 7,875.43

Step by Step Solution

1. Step 1: Write the proportion equation
   10,117.10 : 13,955.57 = 7,875.43 : x
2. Step 2: Convert to fraction form
   10,117.10/13,955.57 = 7,875.43/x
3. Step 3: Cross multiply
   10,117.10x = 13,955.57 × 7,875.43
4. Step 4: Simplify right side
   10,117.10x = 109,906,114.65
5. Step 5: Solve for x
   x = 109,906,114.65/10,117.10
6. Step 6: Final answer
   x = 10,863.40