Finding the Fourth Proportional to 72,872.79, 100,610.88 and 59,476

Step by Step Solution

1. Step 1: Write the proportion equation
   72,872.79 : 100,610.88 = 59,476 : x
2. Step 2: Convert to fraction form
   72,872.79/100,610.88 = 59,476/x
3. Step 3: Cross multiply
   72,872.79x = 100,610.88 × 59,476
4. Step 4: Simplify right side
   72,872.79x = 5,983,932,698.88
5. Step 5: Solve for x
   x = 5,983,932,698.88/72,872.79
6. Step 6: Final answer
   x = 82,114.77