Finding the Fourth Proportional to 9,402.34, 12,976.59 and 5,422.66

Step by Step Solution

1. Step 1: Write the proportion equation
   9,402.34 : 12,976.59 = 5,422.66 : x
2. Step 2: Convert to fraction form
   9,402.34/12,976.59 = 5,422.66/x
3. Step 3: Cross multiply
   9,402.34x = 12,976.59 × 5,422.66
4. Step 4: Simplify right side
   9,402.34x = 70,367,635.53
5. Step 5: Solve for x
   x = 70,367,635.53/9,402.34
6. Step 6: Final answer
   x = 7,484.06