Finding the Fourth Proportional to 8,073.42, 11,145.15 and 5,422.74

Step by Step Solution

1. Step 1: Write the proportion equation
   8,073.42 : 11,145.15 = 5,422.74 : x
2. Step 2: Convert to fraction form
   8,073.42/11,145.15 = 5,422.74/x
3. Step 3: Cross multiply
   8,073.42x = 11,145.15 × 5,422.74
4. Step 4: Simplify right side
   8,073.42x = 60,437,250.71
5. Step 5: Solve for x
   x = 60,437,250.71/8,073.42
6. Step 6: Final answer
   x = 7,485.95