Finding the Fourth Proportional to 8,555.32, 11,802.27 and 5,570.05

Step by Step Solution

1. Step 1: Write the proportion equation
   8,555.32 : 11,802.27 = 5,570.05 : x
2. Step 2: Convert to fraction form
   8,555.32/11,802.27 = 5,570.05/x
3. Step 3: Cross multiply
   8,555.32x = 11,802.27 × 5,570.05
4. Step 4: Simplify right side
   8,555.32x = 65,739,234.01
5. Step 5: Solve for x
   x = 65,739,234.01/8,555.32
6. Step 6: Final answer
   x = 7,684.02