Finding the Fourth Proportional to 9,137.60, 13,711.86 and 3,943.47

Step by Step Solution

1. Step 1: Write the proportion equation
   9,137.60 : 13,711.86 = 3,943.47 : x
2. Step 2: Convert to fraction form
   9,137.60/13,711.86 = 3,943.47/x
3. Step 3: Cross multiply
   9,137.60x = 13,711.86 × 3,943.47
4. Step 4: Simplify right side
   9,137.60x = 54,072,308.55
5. Step 5: Solve for x
   x = 54,072,308.55/9,137.60
6. Step 6: Final answer
   x = 5,917.56