Finding the Fourth Proportional to 9,920.01, 14,890.95 and 5,764.71

Step by Step Solution

1. Step 1: Write the proportion equation
   9,920.01 : 14,890.95 = 5,764.71 : x
2. Step 2: Convert to fraction form
   9,920.01/14,890.95 = 5,764.71/x
3. Step 3: Cross multiply
   9,920.01x = 14,890.95 × 5,764.71
4. Step 4: Simplify right side
   9,920.01x = 85,842,008.37
5. Step 5: Solve for x
   x = 85,842,008.37/9,920.01
6. Step 6: Final answer
   x = 8,653.42