Finding the Fourth Proportional to 9,111.08, 12,560.46 and 6,875.48

Step by Step Solution

1. Step 1: Write the proportion equation
   9,111.08 : 12,560.46 = 6,875.48 : x
2. Step 2: Convert to fraction form
   9,111.08/12,560.46 = 6,875.48/x
3. Step 3: Cross multiply
   9,111.08x = 12,560.46 × 6,875.48
4. Step 4: Simplify right side
   9,111.08x = 86,359,191.52
5. Step 5: Solve for x
   x = 86,359,191.52/9,111.08
6. Step 6: Final answer
   x = 9,478.48