Finding the Fourth Proportional to 9,154.50, 12,633.75 and 5,572.05

Step by Step Solution

1. Step 1: Write the proportion equation
   9,154.50 : 12,633.75 = 5,572.05 : x
2. Step 2: Convert to fraction form
   9,154.50/12,633.75 = 5,572.05/x
3. Step 3: Cross multiply
   9,154.50x = 12,633.75 × 5,572.05
4. Step 4: Simplify right side
   9,154.50x = 70,395,886.69
5. Step 5: Solve for x
   x = 70,395,886.69/9,154.50
6. Step 6: Final answer
   x = 7,689.76