Finding the Fourth Proportional to 81,636.78, 112,648.54 and 45,333.29

Step by Step Solution

1. Step 1: Write the proportion equation
   81,636.78 : 112,648.54 = 45,333.29 : x
2. Step 2: Convert to fraction form
   81,636.78/112,648.54 = 45,333.29/x
3. Step 3: Cross multiply
   81,636.78x = 112,648.54 × 45,333.29
4. Step 4: Simplify right side
   81,636.78x = 5,106,728,368.65
5. Step 5: Solve for x
   x = 5,106,728,368.65/81,636.78
6. Step 6: Final answer
   x = 62,554.26