Finding the Fourth Proportional to 9,013.50, 12,437.98 and 5,427.77

Step by Step Solution

1. Step 1: Write the proportion equation
   9,013.50 : 12,437.98 = 5,427.77 : x
2. Step 2: Convert to fraction form
   9,013.50/12,437.98 = 5,427.77/x
3. Step 3: Cross multiply
   9,013.50x = 12,437.98 × 5,427.77
4. Step 4: Simplify right side
   9,013.50x = 67,510,418.95
5. Step 5: Solve for x
   x = 67,510,418.95/9,013.50
6. Step 6: Final answer
   x = 7,489.92