Finding the Fourth Proportional to 9,622.19, 13,278.67 and 5,643.34

Step by Step Solution

1. Step 1: Write the proportion equation
   9,622.19 : 13,278.67 = 5,643.34 : x
2. Step 2: Convert to fraction form
   9,622.19/13,278.67 = 5,643.34/x
3. Step 3: Cross multiply
   9,622.19x = 13,278.67 × 5,643.34
4. Step 4: Simplify right side
   9,622.19x = 74,936,002.25
5. Step 5: Solve for x
   x = 74,936,002.25/9,622.19
6. Step 6: Final answer
   x = 7,787.83