Finding the Fourth Proportional to 72,768.78, 108,950.72 and 37,153.18

Step by Step Solution

1. Step 1: Write the proportion equation
   72,768.78 : 108,950.72 = 37,153.18 : x
2. Step 2: Convert to fraction form
   72,768.78/108,950.72 = 37,153.18/x
3. Step 3: Cross multiply
   72,768.78x = 108,950.72 × 37,153.18
4. Step 4: Simplify right side
   72,768.78x = 4,047,865,870.70
5. Step 5: Solve for x
   x = 4,047,865,870.70/72,768.78
6. Step 6: Final answer
   x = 55,626.41