Finding the Fourth Proportional to 10,691.35, 14,729.89 and 7,458.06

Step by Step Solution

1. Step 1: Write the proportion equation
   10,691.35 : 14,729.89 = 7,458.06 : x
2. Step 2: Convert to fraction form
   10,691.35/14,729.89 = 7,458.06/x
3. Step 3: Cross multiply
   10,691.35x = 14,729.89 × 7,458.06
4. Step 4: Simplify right side
   10,691.35x = 109,856,403.41
5. Step 5: Solve for x
   x = 109,856,403.41/10,691.35
6. Step 6: Final answer
   x = 10,275.26