Finding the Fourth Proportional to 8,883.37, 12,261.02 and 5,699.21

Step by Step Solution

1. Step 1: Write the proportion equation
   8,883.37 : 12,261.02 = 5,699.21 : x
2. Step 2: Convert to fraction form
   8,883.37/12,261.02 = 5,699.21/x
3. Step 3: Cross multiply
   8,883.37x = 12,261.02 × 5,699.21
4. Step 4: Simplify right side
   8,883.37x = 69,878,139.02
5. Step 5: Solve for x
   x = 69,878,139.02/8,883.37
6. Step 6: Final answer
   x = 7,866.17