Finding the Fourth Proportional to 10,685.37, 14,750.45 and 7,345.42

Step by Step Solution

1. Step 1: Write the proportion equation
   10,685.37 : 14,750.45 = 7,345.42 : x
2. Step 2: Convert to fraction form
   10,685.37/14,750.45 = 7,345.42/x
3. Step 3: Cross multiply
   10,685.37x = 14,750.45 × 7,345.42
4. Step 4: Simplify right side
   10,685.37x = 108,348,245.70
5. Step 5: Solve for x
   x = 108,348,245.70/10,685.37
6. Step 6: Final answer
   x = 10,139.87