Finding the Fourth Proportional to 9,690.77, 13,374.28 and 5,442.22

Step by Step Solution

1. Step 1: Write the proportion equation
   9,690.77 : 13,374.28 = 5,442.22 : x
2. Step 2: Convert to fraction form
   9,690.77/13,374.28 = 5,442.22/x
3. Step 3: Cross multiply
   9,690.77x = 13,374.28 × 5,442.22
4. Step 4: Simplify right side
   9,690.77x = 72,785,797.62
5. Step 5: Solve for x
   x = 72,785,797.62/9,690.77
6. Step 6: Final answer
   x = 7,510.84