Finding the Fourth Proportional to 10,932.83, 15,077.39 and 7,154.78

Step by Step Solution

1. Step 1: Write the proportion equation
   10,932.83 : 15,077.39 = 7,154.78 : x
2. Step 2: Convert to fraction form
   10,932.83/15,077.39 = 7,154.78/x
3. Step 3: Cross multiply
   10,932.83x = 15,077.39 × 7,154.78
4. Step 4: Simplify right side
   10,932.83x = 107,875,464.00
5. Step 5: Solve for x
   x = 107,875,464.00/10,932.83
6. Step 6: Final answer
   x = 9,867.12