Finding the Fourth Proportional to 8,597.72, 12,907.52 and 7,307.40

Step by Step Solution

1. Step 1: Write the proportion equation
   8,597.72 : 12,907.52 = 7,307.40 : x
2. Step 2: Convert to fraction form
   8,597.72/12,907.52 = 7,307.40/x
3. Step 3: Cross multiply
   8,597.72x = 12,907.52 × 7,307.40
4. Step 4: Simplify right side
   8,597.72x = 94,320,411.65
5. Step 5: Solve for x
   x = 94,320,411.65/8,597.72
6. Step 6: Final answer
   x = 10,970.40