Finding the Fourth Proportional to 72,756, 108,931.23 and 37,140.70

Step by Step Solution

1. Step 1: Write the proportion equation
   72,756 : 108,931.23 = 37,140.70 : x
2. Step 2: Convert to fraction form
   72,756/108,931.23 = 37,140.70/x
3. Step 3: Cross multiply
   72,756x = 108,931.23 × 37,140.70
4. Step 4: Simplify right side
   72,756x = 4,045,782,134.06
5. Step 5: Solve for x
   x = 4,045,782,134.06/72,756
6. Step 6: Final answer
   x = 55,607.54