Finding the Fourth Proportional to 10,937.52, 16,407.39 and 3,918.15

Step by Step Solution

1. Step 1: Write the proportion equation
   10,937.52 : 16,407.39 = 3,918.15 : x
2. Step 2: Convert to fraction form
   10,937.52/16,407.39 = 3,918.15/x
3. Step 3: Cross multiply
   10,937.52x = 16,407.39 × 3,918.15
4. Step 4: Simplify right side
   10,937.52x = 64,286,615.13
5. Step 5: Solve for x
   x = 64,286,615.13/10,937.52
6. Step 6: Final answer
   x = 5,877.62