Finding the Fourth Proportional to 9,970.55, 13,759.17 and 5,494.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,970.55 : 13,759.17 = 5,494.72 : x
2. Step 2: Convert to fraction form
   9,970.55/13,759.17 = 5,494.72/x
3. Step 3: Cross multiply
   9,970.55x = 13,759.17 × 5,494.72
4. Step 4: Simplify right side
   9,970.55x = 75,602,717.79
5. Step 5: Solve for x
   x = 75,602,717.79/9,970.55
6. Step 6: Final answer
   x = 7,582.60