Finding the Fourth Proportional to 9,169.61, 12,653.01 and 5,631.93

Step by Step Solution

1. Step 1: Write the proportion equation
   9,169.61 : 12,653.01 = 5,631.93 : x
2. Step 2: Convert to fraction form
   9,169.61/12,653.01 = 5,631.93/x
3. Step 3: Cross multiply
   9,169.61x = 12,653.01 × 5,631.93
4. Step 4: Simplify right side
   9,169.61x = 71,260,866.61
5. Step 5: Solve for x
   x = 71,260,866.61/9,169.61
6. Step 6: Final answer
   x = 7,771.42