Finding the Fourth Proportional to 9,971.90, 13,760.71 and 5,495.53

Step by Step Solution

1. Step 1: Write the proportion equation
   9,971.90 : 13,760.71 = 5,495.53 : x
2. Step 2: Convert to fraction form
   9,971.90/13,760.71 = 5,495.53/x
3. Step 3: Cross multiply
   9,971.90x = 13,760.71 × 5,495.53
4. Step 4: Simplify right side
   9,971.90x = 75,622,394.63
5. Step 5: Solve for x
   x = 75,622,394.63/9,971.90
6. Step 6: Final answer
   x = 7,583.55