Finding the Fourth Proportional to 83,020, 124,425.28 and 45,068

Step by Step Solution

1. Step 1: Write the proportion equation
   83,020 : 124,425.28 = 45,068 : x
2. Step 2: Convert to fraction form
   83,020/124,425.28 = 45,068/x
3. Step 3: Cross multiply
   83,020x = 124,425.28 × 45,068
4. Step 4: Simplify right side
   83,020x = 5,607,598,519.04
5. Step 5: Solve for x
   x = 5,607,598,519.04/83,020
6. Step 6: Final answer
   x = 67,545.15