Finding the Fourth Proportional to 9,918.83, 14,870.96 and 4,728.35

Step by Step Solution

1. Step 1: Write the proportion equation
   9,918.83 : 14,870.96 = 4,728.35 : x
2. Step 2: Convert to fraction form
   9,918.83/14,870.96 = 4,728.35/x
3. Step 3: Cross multiply
   9,918.83x = 14,870.96 × 4,728.35
4. Step 4: Simplify right side
   9,918.83x = 70,315,134.98
5. Step 5: Solve for x
   x = 70,315,134.98/9,918.83
6. Step 6: Final answer
   x = 7,089.05