Finding the Fourth Proportional to 7,032.42, 9,704.88 and 3,888.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,032.42 : 9,704.88 = 3,888.72 : x
2. Step 2: Convert to fraction form
   7,032.42/9,704.88 = 3,888.72/x
3. Step 3: Cross multiply
   7,032.42x = 9,704.88 × 3,888.72
4. Step 4: Simplify right side
   7,032.42x = 37,739,560.95
5. Step 5: Solve for x
   x = 37,739,560.95/7,032.42
6. Step 6: Final answer
   x = 5,366.51