Finding the Fourth Proportional to 9,006.60, 12,429.32 and 5,649.55

Step by Step Solution

1. Step 1: Write the proportion equation
   9,006.60 : 12,429.32 = 5,649.55 : x
2. Step 2: Convert to fraction form
   9,006.60/12,429.32 = 5,649.55/x
3. Step 3: Cross multiply
   9,006.60x = 12,429.32 × 5,649.55
4. Step 4: Simplify right side
   9,006.60x = 70,220,075.40
5. Step 5: Solve for x
   x = 70,220,075.40/9,006.60
6. Step 6: Final answer
   x = 7,796.51