Finding the Fourth Proportional to 72,736.88, 100,352.76 and 59,285

Step by Step Solution

1. Step 1: Write the proportion equation
   72,736.88 : 100,352.76 = 59,285 : x
2. Step 2: Convert to fraction form
   72,736.88/100,352.76 = 59,285/x
3. Step 3: Cross multiply
   72,736.88x = 100,352.76 × 59,285
4. Step 4: Simplify right side
   72,736.88x = 5,949,413,376.60
5. Step 5: Solve for x
   x = 5,949,413,376.60/72,736.88
6. Step 6: Final answer
   x = 81,793.63