Finding the Fourth Proportional to 9,930.42, 13,704.03 and 5,454.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,930.42 : 13,704.03 = 5,454.18 : x
2. Step 2: Convert to fraction form
   9,930.42/13,704.03 = 5,454.18/x
3. Step 3: Cross multiply
   9,930.42x = 13,704.03 × 5,454.18
4. Step 4: Simplify right side
   9,930.42x = 74,744,246.35
5. Step 5: Solve for x
   x = 74,744,246.35/9,930.42
6. Step 6: Final answer
   x = 7,526.80