Finding the Fourth Proportional to 9,285.72, 13,931.82 and 4,092.04

Step by Step Solution

1. Step 1: Write the proportion equation
   9,285.72 : 13,931.82 = 4,092.04 : x
2. Step 2: Convert to fraction form
   9,285.72/13,931.82 = 4,092.04/x
3. Step 3: Cross multiply
   9,285.72x = 13,931.82 × 4,092.04
4. Step 4: Simplify right side
   9,285.72x = 57,009,564.71
5. Step 5: Solve for x
   x = 57,009,564.71/9,285.72
6. Step 6: Final answer
   x = 6,139.49