Finding the Fourth Proportional to 81,447.50, 112,404.04 and 47,919.98

Step by Step Solution

1. Step 1: Write the proportion equation
   81,447.50 : 112,404.04 = 47,919.98 : x
2. Step 2: Convert to fraction form
   81,447.50/112,404.04 = 47,919.98/x
3. Step 3: Cross multiply
   81,447.50x = 112,404.04 × 47,919.98
4. Step 4: Simplify right side
   81,447.50x = 5,386,399,348.72
5. Step 5: Solve for x
   x = 5,386,399,348.72/81,447.50
6. Step 6: Final answer
   x = 66,133.39