Finding the Fourth Proportional to 9,527.61, 13,173.18 and 8,345.29

Step by Step Solution

1. Step 1: Write the proportion equation
   9,527.61 : 13,173.18 = 8,345.29 : x
2. Step 2: Convert to fraction form
   9,527.61/13,173.18 = 8,345.29/x
3. Step 3: Cross multiply
   9,527.61x = 13,173.18 × 8,345.29
4. Step 4: Simplify right side
   9,527.61x = 109,934,007.32
5. Step 5: Solve for x
   x = 109,934,007.32/9,527.61
6. Step 6: Final answer
   x = 11,538.47