Finding the Fourth Proportional to 8,755.35, 12,081.98 and 5,398.47

Step by Step Solution

1. Step 1: Write the proportion equation
   8,755.35 : 12,081.98 = 5,398.47 : x
2. Step 2: Convert to fraction form
   8,755.35/12,081.98 = 5,398.47/x
3. Step 3: Cross multiply
   8,755.35x = 12,081.98 × 5,398.47
4. Step 4: Simplify right side
   8,755.35x = 65,224,235.07
5. Step 5: Solve for x
   x = 65,224,235.07/8,755.35
6. Step 6: Final answer
   x = 7,449.65