Finding the Fourth Proportional to 36,978.78, 55,468.59 and 10,683.75

Step by Step Solution

1. Step 1: Write the proportion equation
   36,978.78 : 55,468.59 = 10,683.75 : x
2. Step 2: Convert to fraction form
   36,978.78/55,468.59 = 10,683.75/x
3. Step 3: Cross multiply
   36,978.78x = 55,468.59 × 10,683.75
4. Step 4: Simplify right side
   36,978.78x = 592,612,548.41
5. Step 5: Solve for x
   x = 592,612,548.41/36,978.78
6. Step 6: Final answer
   x = 16,025.75