Finding the Fourth Proportional to 89,448.95, 123,451.22 and 57,710.18

Step by Step Solution

1. Step 1: Write the proportion equation
   89,448.95 : 123,451.22 = 57,710.18 : x
2. Step 2: Convert to fraction form
   89,448.95/123,451.22 = 57,710.18/x
3. Step 3: Cross multiply
   89,448.95x = 123,451.22 × 57,710.18
4. Step 4: Simplify right side
   89,448.95x = 7,124,392,127.42
5. Step 5: Solve for x
   x = 7,124,392,127.42/89,448.95
6. Step 6: Final answer
   x = 79,647.58