Finding the Fourth Proportional to 123,766.02, 170,757.96 and 72,762.48

Step by Step Solution

1. Step 1: Write the proportion equation
   123,766.02 : 170,757.96 = 72,762.48 : x
2. Step 2: Convert to fraction form
   123,766.02/170,757.96 = 72,762.48/x
3. Step 3: Cross multiply
   123,766.02x = 170,757.96 × 72,762.48
4. Step 4: Simplify right side
   123,766.02x = 12,424,772,649.34
5. Step 5: Solve for x
   x = 12,424,772,649.34/123,766.02
6. Step 6: Final answer
   x = 100,389.21