Finding the Fourth Proportional to 9,411.71, 12,987.69 and 5,432.59

Step by Step Solution

1. Step 1: Write the proportion equation
   9,411.71 : 12,987.69 = 5,432.59 : x
2. Step 2: Convert to fraction form
   9,411.71/12,987.69 = 5,432.59/x
3. Step 3: Cross multiply
   9,411.71x = 12,987.69 × 5,432.59
4. Step 4: Simplify right side
   9,411.71x = 70,556,729.88
5. Step 5: Solve for x
   x = 70,556,729.88/9,411.71
6. Step 6: Final answer
   x = 7,496.70