Finding the Fourth Proportional to 9,622.98, 13,279.50 and 5,373.90

Step by Step Solution

1. Step 1: Write the proportion equation
   9,622.98 : 13,279.50 = 5,373.90 : x
2. Step 2: Convert to fraction form
   9,622.98/13,279.50 = 5,373.90/x
3. Step 3: Cross multiply
   9,622.98x = 13,279.50 × 5,373.90
4. Step 4: Simplify right side
   9,622.98x = 71,362,705.05
5. Step 5: Solve for x
   x = 71,362,705.05/9,622.98
6. Step 6: Final answer
   x = 7,415.86