Finding the Fourth Proportional to 123,793.72, 170,875.98 and 72,804.22

Step by Step Solution

1. Step 1: Write the proportion equation
   123,793.72 : 170,875.98 = 72,804.22 : x
2. Step 2: Convert to fraction form
   123,793.72/170,875.98 = 72,804.22/x
3. Step 3: Cross multiply
   123,793.72x = 170,875.98 × 72,804.22
4. Step 4: Simplify right side
   123,793.72x = 12,440,492,013.45
5. Step 5: Solve for x
   x = 12,440,492,013.45/123,793.72
6. Step 6: Final answer
   x = 100,493.73