Finding the Fourth Proportional to 9,945.72, 14,909.67 and 4,098.60

Step by Step Solution

1. Step 1: Write the proportion equation
   9,945.72 : 14,909.67 = 4,098.60 : x
2. Step 2: Convert to fraction form
   9,945.72/14,909.67 = 4,098.60/x
3. Step 3: Cross multiply
   9,945.72x = 14,909.67 × 4,098.60
4. Step 4: Simplify right side
   9,945.72x = 61,108,773.46
5. Step 5: Solve for x
   x = 61,108,773.46/9,945.72
6. Step 6: Final answer
   x = 6,144.23