Finding the Fourth Proportional to 9,401.06, 13,032.84 and 8,901.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,401.06 : 13,032.84 = 8,901.72 : x
2. Step 2: Convert to fraction form
   9,401.06/13,032.84 = 8,901.72/x
3. Step 3: Cross multiply
   9,401.06x = 13,032.84 × 8,901.72
4. Step 4: Simplify right side
   9,401.06x = 116,014,692.48
5. Step 5: Solve for x
   x = 116,014,692.48/9,401.06
6. Step 6: Final answer
   x = 12,340.60