Finding the Fourth Proportional to 8,790.96, 12,127.32 and 5,432.55

Step by Step Solution

1. Step 1: Write the proportion equation
   8,790.96 : 12,127.32 = 5,432.55 : x
2. Step 2: Convert to fraction form
   8,790.96/12,127.32 = 5,432.55/x
3. Step 3: Cross multiply
   8,790.96x = 12,127.32 × 5,432.55
4. Step 4: Simplify right side
   8,790.96x = 65,882,295.00
5. Step 5: Solve for x
   x = 65,882,295.00/8,790.96
6. Step 6: Final answer
   x = 7,494.32