Finding the Fourth Proportional to 9,970.86, 13,759.07 and 5,494.35

Step by Step Solution

1. Step 1: Write the proportion equation
   9,970.86 : 13,759.07 = 5,494.35 : x
2. Step 2: Convert to fraction form
   9,970.86/13,759.07 = 5,494.35/x
3. Step 3: Cross multiply
   9,970.86x = 13,759.07 × 5,494.35
4. Step 4: Simplify right side
   9,970.86x = 75,597,146.25
5. Step 5: Solve for x
   x = 75,597,146.25/9,970.86
6. Step 6: Final answer
   x = 7,581.81