Finding the Fourth Proportional to 80,916.86, 111,665.28 and 45,106.10

Step by Step Solution

1. Step 1: Write the proportion equation
   80,916.86 : 111,665.28 = 45,106.10 : x
2. Step 2: Convert to fraction form
   80,916.86/111,665.28 = 45,106.10/x
3. Step 3: Cross multiply
   80,916.86x = 111,665.28 × 45,106.10
4. Step 4: Simplify right side
   80,916.86x = 5,036,784,727.88
5. Step 5: Solve for x
   x = 5,036,784,727.88/80,916.86
6. Step 6: Final answer
   x = 62,246.42