Finding the Fourth Proportional to 8,909.94, 13,347.90 and 5,401.02

Step by Step Solution

1. Step 1: Write the proportion equation
   8,909.94 : 13,347.90 = 5,401.02 : x
2. Step 2: Convert to fraction form
   8,909.94/13,347.90 = 5,401.02/x
3. Step 3: Cross multiply
   8,909.94x = 13,347.90 × 5,401.02
4. Step 4: Simplify right side
   8,909.94x = 72,092,274.86
5. Step 5: Solve for x
   x = 72,092,274.86/8,909.94
6. Step 6: Final answer
   x = 8,091.22