Finding the Fourth Proportional to 81,452.63, 112,404.62 and 49,621.50

Step by Step Solution

1. Step 1: Write the proportion equation
   81,452.63 : 112,404.62 = 49,621.50 : x
2. Step 2: Convert to fraction form
   81,452.63/112,404.62 = 49,621.50/x
3. Step 3: Cross multiply
   81,452.63x = 112,404.62 × 49,621.50
4. Step 4: Simplify right side
   81,452.63x = 5,577,685,851.33
5. Step 5: Solve for x
   x = 5,577,685,851.33/81,452.63
6. Step 6: Final answer
   x = 68,477.66