Finding the Fourth Proportional to 9,423.42, 12,987.99 and 7,061.46

Step by Step Solution

1. Step 1: Write the proportion equation
   9,423.42 : 12,987.99 = 7,061.46 : x
2. Step 2: Convert to fraction form
   9,423.42/12,987.99 = 7,061.46/x
3. Step 3: Cross multiply
   9,423.42x = 12,987.99 × 7,061.46
4. Step 4: Simplify right side
   9,423.42x = 91,714,171.87
5. Step 5: Solve for x
   x = 91,714,171.87/9,423.42
6. Step 6: Final answer
   x = 9,732.58