Finding the Fourth Proportional to 81,454.63, 112,407.38 and 49,623.50

Step by Step Solution

1. Step 1: Write the proportion equation
   81,454.63 : 112,407.38 = 49,623.50 : x
2. Step 2: Convert to fraction form
   81,454.63/112,407.38 = 49,623.50/x
3. Step 3: Cross multiply
   81,454.63x = 112,407.38 × 49,623.50
4. Step 4: Simplify right side
   81,454.63x = 5,578,047,621.43
5. Step 5: Solve for x
   x = 5,578,047,621.43/81,454.63
6. Step 6: Final answer
   x = 68,480.42