Finding the Fourth Proportional to 9,930.63, 13,704.18 and 5,454.45

Step by Step Solution

1. Step 1: Write the proportion equation
   9,930.63 : 13,704.18 = 5,454.45 : x
2. Step 2: Convert to fraction form
   9,930.63/13,704.18 = 5,454.45/x
3. Step 3: Cross multiply
   9,930.63x = 13,704.18 × 5,454.45
4. Step 4: Simplify right side
   9,930.63x = 74,748,764.60
5. Step 5: Solve for x
   x = 74,748,764.60/9,930.63
6. Step 6: Final answer
   x = 7,527.09