Finding the Fourth Proportional to 36,737.88, 55,111.86 and 11,778.72

Step by Step Solution

1. Step 1: Write the proportion equation
   36,737.88 : 55,111.86 = 11,778.72 : x
2. Step 2: Convert to fraction form
   36,737.88/55,111.86 = 11,778.72/x
3. Step 3: Cross multiply
   36,737.88x = 55,111.86 × 11,778.72
4. Step 4: Simplify right side
   36,737.88x = 649,147,167.62
5. Step 5: Solve for x
   x = 649,147,167.62/36,737.88
6. Step 6: Final answer
   x = 17,669.70