Finding the Fourth Proportional to 10,554.06, 15,833.49 and 5,621.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,554.06 : 15,833.49 = 5,621.10 : x
2. Step 2: Convert to fraction form
   10,554.06/15,833.49 = 5,621.10/x
3. Step 3: Cross multiply
   10,554.06x = 15,833.49 × 5,621.10
4. Step 4: Simplify right side
   10,554.06x = 89,001,630.64
5. Step 5: Solve for x
   x = 89,001,630.64/10,554.06
6. Step 6: Final answer
   x = 8,432.93