Finding the Fourth Proportional to 11,773.08, 17,632.72 and 5,621.40

Step by Step Solution

1. Step 1: Write the proportion equation
   11,773.08 : 17,632.72 = 5,621.40 : x
2. Step 2: Convert to fraction form
   11,773.08/17,632.72 = 5,621.40/x
3. Step 3: Cross multiply
   11,773.08x = 17,632.72 × 5,621.40
4. Step 4: Simplify right side
   11,773.08x = 99,120,572.21
5. Step 5: Solve for x
   x = 99,120,572.21/11,773.08
6. Step 6: Final answer
   x = 8,419.26