Finding the Fourth Proportional to 9,971.16, 13,760.80 and 5,495.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,971.16 : 13,760.80 = 5,495.88 : x
2. Step 2: Convert to fraction form
   9,971.16/13,760.80 = 5,495.88/x
3. Step 3: Cross multiply
   9,971.16x = 13,760.80 × 5,495.88
4. Step 4: Simplify right side
   9,971.16x = 75,627,705.50
5. Step 5: Solve for x
   x = 75,627,705.50/9,971.16
6. Step 6: Final answer
   x = 7,584.64