Finding the Fourth Proportional to 9,618.76, 14,429.90 and 4,424.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,618.76 : 14,429.90 = 4,424.50 : x
2. Step 2: Convert to fraction form
   9,618.76/14,429.90 = 4,424.50/x
3. Step 3: Cross multiply
   9,618.76x = 14,429.90 × 4,424.50
4. Step 4: Simplify right side
   9,618.76x = 63,845,092.55
5. Step 5: Solve for x
   x = 63,845,092.55/9,618.76
6. Step 6: Final answer
   x = 6,637.56