Finding the Fourth Proportional to 9,622.58, 13,280.25 and 5,430.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,622.58 : 13,280.25 = 5,430.50 : x
2. Step 2: Convert to fraction form
   9,622.58/13,280.25 = 5,430.50/x
3. Step 3: Cross multiply
   9,622.58x = 13,280.25 × 5,430.50
4. Step 4: Simplify right side
   9,622.58x = 72,118,397.63
5. Step 5: Solve for x
   x = 72,118,397.63/9,622.58
6. Step 6: Final answer
   x = 7,494.70