Finding the Fourth Proportional to 72,602.88, 108,838.71 and 50,426.70

Step by Step Solution

1. Step 1: Write the proportion equation
   72,602.88 : 108,838.71 = 50,426.70 : x
2. Step 2: Convert to fraction form
   72,602.88/108,838.71 = 50,426.70/x
3. Step 3: Cross multiply
   72,602.88x = 108,838.71 × 50,426.70
4. Step 4: Simplify right side
   72,602.88x = 5,488,376,977.56
5. Step 5: Solve for x
   x = 5,488,376,977.56/72,602.88
6. Step 6: Final answer
   x = 75,594.48