Finding the Fourth Proportional to 81,101.29, 111,921.46 and 45,291.34

Step by Step Solution

1. Step 1: Write the proportion equation
   81,101.29 : 111,921.46 = 45,291.34 : x
2. Step 2: Convert to fraction form
   81,101.29/111,921.46 = 45,291.34/x
3. Step 3: Cross multiply
   81,101.29x = 111,921.46 × 45,291.34
4. Step 4: Simplify right side
   81,101.29x = 5,069,072,338.55
5. Step 5: Solve for x
   x = 5,069,072,338.55/81,101.29
6. Step 6: Final answer
   x = 62,502.98