Finding the Fourth Proportional to 9,921.01, 14,892.45 and 5,765.71

Step by Step Solution

1. Step 1: Write the proportion equation
   9,921.01 : 14,892.45 = 5,765.71 : x
2. Step 2: Convert to fraction form
   9,921.01/14,892.45 = 5,765.71/x
3. Step 3: Cross multiply
   9,921.01x = 14,892.45 × 5,765.71
4. Step 4: Simplify right side
   9,921.01x = 85,865,547.89
5. Step 5: Solve for x
   x = 85,865,547.89/9,921.01
6. Step 6: Final answer
   x = 8,654.92