Finding the Fourth Proportional to 81,760.02, 112,831.68 and 45,949.30

Step by Step Solution

1. Step 1: Write the proportion equation
   81,760.02 : 112,831.68 = 45,949.30 : x
2. Step 2: Convert to fraction form
   81,760.02/112,831.68 = 45,949.30/x
3. Step 3: Cross multiply
   81,760.02x = 112,831.68 × 45,949.30
4. Step 4: Simplify right side
   81,760.02x = 5,184,536,713.82
5. Step 5: Solve for x
   x = 5,184,536,713.82/81,760.02
6. Step 6: Final answer
   x = 63,411.64