Finding the Fourth Proportional to 81,351.72, 112,264.20 and 45,541.56

Step by Step Solution

1. Step 1: Write the proportion equation
   81,351.72 : 112,264.20 = 45,541.56 : x
2. Step 2: Convert to fraction form
   81,351.72/112,264.20 = 45,541.56/x
3. Step 3: Cross multiply
   81,351.72x = 112,264.20 × 45,541.56
4. Step 4: Simplify right side
   81,351.72x = 5,112,686,800.15
5. Step 5: Solve for x
   x = 5,112,686,800.15/81,351.72
6. Step 6: Final answer
   x = 62,846.70