Finding the Fourth Proportional to 9,291.80, 12,822.55 and 5,755.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,291.80 : 12,822.55 = 5,755.88 : x
2. Step 2: Convert to fraction form
   9,291.80/12,822.55 = 5,755.88/x
3. Step 3: Cross multiply
   9,291.80x = 12,822.55 × 5,755.88
4. Step 4: Simplify right side
   9,291.80x = 73,804,980.59
5. Step 5: Solve for x
   x = 73,804,980.59/9,291.80
6. Step 6: Final answer
   x = 7,943.03