Finding the Fourth Proportional to 11,357.42, 15,672.45 and 7,108.29

Step by Step Solution

1. Step 1: Write the proportion equation
   11,357.42 : 15,672.45 = 7,108.29 : x
2. Step 2: Convert to fraction form
   11,357.42/15,672.45 = 7,108.29/x
3. Step 3: Cross multiply
   11,357.42x = 15,672.45 × 7,108.29
4. Step 4: Simplify right side
   11,357.42x = 111,404,319.61
5. Step 5: Solve for x
   x = 111,404,319.61/11,357.42
6. Step 6: Final answer
   x = 9,808.95