Finding the Fourth Proportional to 9,012.70, 12,437.88 and 5,235.82

Step by Step Solution

1. Step 1: Write the proportion equation
   9,012.70 : 12,437.88 = 5,235.82 : x
2. Step 2: Convert to fraction form
   9,012.70/12,437.88 = 5,235.82/x
3. Step 3: Cross multiply
   9,012.70x = 12,437.88 × 5,235.82
4. Step 4: Simplify right side
   9,012.70x = 65,122,500.86
5. Step 5: Solve for x
   x = 65,122,500.86/9,012.70
6. Step 6: Final answer
   x = 7,225.64