Finding the Fourth Proportional to 9,900.01, 13,654.33 and 5,920.35

Step by Step Solution

1. Step 1: Write the proportion equation
   9,900.01 : 13,654.33 = 5,920.35 : x
2. Step 2: Convert to fraction form
   9,900.01/13,654.33 = 5,920.35/x
3. Step 3: Cross multiply
   9,900.01x = 13,654.33 × 5,920.35
4. Step 4: Simplify right side
   9,900.01x = 80,838,412.62
5. Step 5: Solve for x
   x = 80,838,412.62/9,900.01
6. Step 6: Final answer
   x = 8,165.49