Finding the Fourth Proportional to 81,723.62, 112,792.59 and 47,736.05

Step by Step Solution

1. Step 1: Write the proportion equation
   81,723.62 : 112,792.59 = 47,736.05 : x
2. Step 2: Convert to fraction form
   81,723.62/112,792.59 = 47,736.05/x
3. Step 3: Cross multiply
   81,723.62x = 112,792.59 × 47,736.05
4. Step 4: Simplify right side
   81,723.62x = 5,384,272,151.91
5. Step 5: Solve for x
   x = 5,384,272,151.91/81,723.62
6. Step 6: Final answer
   x = 65,883.91