Finding the Fourth Proportional to 8,117.53, 12,152.57 and 7,339.32

Step by Step Solution

1. Step 1: Write the proportion equation
   8,117.53 : 12,152.57 = 7,339.32 : x
2. Step 2: Convert to fraction form
   8,117.53/12,152.57 = 7,339.32/x
3. Step 3: Cross multiply
   8,117.53x = 12,152.57 × 7,339.32
4. Step 4: Simplify right side
   8,117.53x = 89,191,563.36
5. Step 5: Solve for x
   x = 89,191,563.36/8,117.53
6. Step 6: Final answer
   x = 10,987.53