Finding the Fourth Proportional to 81,338.88, 112,246.56 and 45,528.89

Step by Step Solution

1. Step 1: Write the proportion equation
   81,338.88 : 112,246.56 = 45,528.89 : x
2. Step 2: Convert to fraction form
   81,338.88/112,246.56 = 45,528.89/x
3. Step 3: Cross multiply
   81,338.88x = 112,246.56 × 45,528.89
4. Step 4: Simplify right side
   81,338.88x = 5,110,460,721.89
5. Step 5: Solve for x
   x = 5,110,460,721.89/81,338.88
6. Step 6: Final answer
   x = 62,829.25