Finding the Fourth Proportional to 10,390.52, 14,320.38 and 7,866.59

Step by Step Solution

1. Step 1: Write the proportion equation
   10,390.52 : 14,320.38 = 7,866.59 : x
2. Step 2: Convert to fraction form
   10,390.52/14,320.38 = 7,866.59/x
3. Step 3: Cross multiply
   10,390.52x = 14,320.38 × 7,866.59
4. Step 4: Simplify right side
   10,390.52x = 112,652,471.75
5. Step 5: Solve for x
   x = 112,652,471.75/10,390.52
6. Step 6: Final answer
   x = 10,841.85