Finding the Fourth Proportional to 72,065.15, 108,039.29 and 29,976.72

Step by Step Solution

1. Step 1: Write the proportion equation
   72,065.15 : 108,039.29 = 29,976.72 : x
2. Step 2: Convert to fraction form
   72,065.15/108,039.29 = 29,976.72/x
3. Step 3: Cross multiply
   72,065.15x = 108,039.29 × 29,976.72
4. Step 4: Simplify right side
   72,065.15x = 3,238,663,395.45
5. Step 5: Solve for x
   x = 3,238,663,395.45/72,065.15
6. Step 6: Final answer
   x = 44,940.77