Finding the Fourth Proportional to 83,105.28, 124,516.12 and 45,696.72

Step by Step Solution

1. Step 1: Write the proportion equation
   83,105.28 : 124,516.12 = 45,696.72 : x
2. Step 2: Convert to fraction form
   83,105.28/124,516.12 = 45,696.72/x
3. Step 3: Cross multiply
   83,105.28x = 124,516.12 × 45,696.72
4. Step 4: Simplify right side
   83,105.28x = 5,689,978,271.13
5. Step 5: Solve for x
   x = 5,689,978,271.13/83,105.28
6. Step 6: Final answer
   x = 68,467.11