Finding the Fourth Proportional to 103,765, 155,619.15 and 37,192.72

Step by Step Solution

1. Step 1: Write the proportion equation
   103,765 : 155,619.15 = 37,192.72 : x
2. Step 2: Convert to fraction form
   103,765/155,619.15 = 37,192.72/x
3. Step 3: Cross multiply
   103,765x = 155,619.15 × 37,192.72
4. Step 4: Simplify right side
   103,765x = 5,787,899,472.59
5. Step 5: Solve for x
   x = 5,787,899,472.59/103,765
6. Step 6: Final answer
   x = 55,778.92