Finding the Fourth Proportional to 9,931.01, 14,891.71 and 5,772.22

Step by Step Solution

1. Step 1: Write the proportion equation
   9,931.01 : 14,891.71 = 5,772.22 : x
2. Step 2: Convert to fraction form
   9,931.01/14,891.71 = 5,772.22/x
3. Step 3: Cross multiply
   9,931.01x = 14,891.71 × 5,772.22
4. Step 4: Simplify right side
   9,931.01x = 85,958,174.64
5. Step 5: Solve for x
   x = 85,958,174.64/9,931.01
6. Step 6: Final answer
   x = 8,655.53