Finding the Fourth Proportional to 9,971.55, 13,761.18 and 5,495.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,971.55 : 13,761.18 = 5,495.76 : x
2. Step 2: Convert to fraction form
   9,971.55/13,761.18 = 5,495.76/x
3. Step 3: Cross multiply
   9,971.55x = 13,761.18 × 5,495.76
4. Step 4: Simplify right side
   9,971.55x = 75,628,142.60
5. Step 5: Solve for x
   x = 75,628,142.60/9,971.55
6. Step 6: Final answer
   x = 7,584.39