Finding the Fourth Proportional to 10,875.78, 16,276.59 and 7,545.15

Step by Step Solution

1. Step 1: Write the proportion equation
   10,875.78 : 16,276.59 = 7,545.15 : x
2. Step 2: Convert to fraction form
   10,875.78/16,276.59 = 7,545.15/x
3. Step 3: Cross multiply
   10,875.78x = 16,276.59 × 7,545.15
4. Step 4: Simplify right side
   10,875.78x = 122,809,313.04
5. Step 5: Solve for x
   x = 122,809,313.04/10,875.78
6. Step 6: Final answer
   x = 11,292.00