Finding the Fourth Proportional to 81,749.32, 112,810.42 and 47,760.96

Step by Step Solution

1. Step 1: Write the proportion equation
   81,749.32 : 112,810.42 = 47,760.96 : x
2. Step 2: Convert to fraction form
   81,749.32/112,810.42 = 47,760.96/x
3. Step 3: Cross multiply
   81,749.32x = 112,810.42 × 47,760.96
4. Step 4: Simplify right side
   81,749.32x = 5,387,933,957.20
5. Step 5: Solve for x
   x = 5,387,933,957.20/81,749.32
6. Step 6: Final answer
   x = 65,908.00