Finding the Fourth Proportional to 90,233, 124,578.02 and 57,980.68

Step by Step Solution

1. Step 1: Write the proportion equation
   90,233 : 124,578.02 = 57,980.68 : x
2. Step 2: Convert to fraction form
   90,233/124,578.02 = 57,980.68/x
3. Step 3: Cross multiply
   90,233x = 124,578.02 × 57,980.68
4. Step 4: Simplify right side
   90,233x = 7,223,118,312.65
5. Step 5: Solve for x
   x = 7,223,118,312.65/90,233
6. Step 6: Final answer
   x = 80,049.63