Finding the Fourth Proportional to 9,900.54, 14,848.38 and 4,355.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,900.54 : 14,848.38 = 4,355.28 : x
2. Step 2: Convert to fraction form
   9,900.54/14,848.38 = 4,355.28/x
3. Step 3: Cross multiply
   9,900.54x = 14,848.38 × 4,355.28
4. Step 4: Simplify right side
   9,900.54x = 64,668,852.45
5. Step 5: Solve for x
   x = 64,668,852.45/9,900.54
6. Step 6: Final answer
   x = 6,531.85