Finding the Fourth Proportional to 81,105.28, 111,925.55 and 45,296.62

Step by Step Solution

1. Step 1: Write the proportion equation
   81,105.28 : 111,925.55 = 45,296.62 : x
2. Step 2: Convert to fraction form
   81,105.28/111,925.55 = 45,296.62/x
3. Step 3: Cross multiply
   81,105.28x = 111,925.55 × 45,296.62
4. Step 4: Simplify right side
   81,105.28x = 5,069,849,106.64
5. Step 5: Solve for x
   x = 5,069,849,106.64/81,105.28
6. Step 6: Final answer
   x = 62,509.48