Finding the Fourth Proportional to 9,411.98, 12,988.01 and 5,432.85

Step by Step Solution

1. Step 1: Write the proportion equation
   9,411.98 : 12,988.01 = 5,432.85 : x
2. Step 2: Convert to fraction form
   9,411.98/12,988.01 = 5,432.85/x
3. Step 3: Cross multiply
   9,411.98x = 12,988.01 × 5,432.85
4. Step 4: Simplify right side
   9,411.98x = 70,561,923.71
5. Step 5: Solve for x
   x = 70,561,923.71/9,411.98
6. Step 6: Final answer
   x = 7,497.04