Finding the Fourth Proportional to 9,118.52, 12,583.60 and 5,343.92

Step by Step Solution

1. Step 1: Write the proportion equation
   9,118.52 : 12,583.60 = 5,343.92 : x
2. Step 2: Convert to fraction form
   9,118.52/12,583.60 = 5,343.92/x
3. Step 3: Cross multiply
   9,118.52x = 12,583.60 × 5,343.92
4. Step 4: Simplify right side
   9,118.52x = 67,245,751.71
5. Step 5: Solve for x
   x = 67,245,751.71/9,118.52
6. Step 6: Final answer
   x = 7,374.63