Finding the Fourth Proportional to 8,980.06, 12,393.61 and 5,442.82

Step by Step Solution

1. Step 1: Write the proportion equation
   8,980.06 : 12,393.61 = 5,442.82 : x
2. Step 2: Convert to fraction form
   8,980.06/12,393.61 = 5,442.82/x
3. Step 3: Cross multiply
   8,980.06x = 12,393.61 × 5,442.82
4. Step 4: Simplify right side
   8,980.06x = 67,456,126.41
5. Step 5: Solve for x
   x = 67,456,126.41/8,980.06
6. Step 6: Final answer
   x = 7,511.77