Finding the Fourth Proportional to 81,791.30, 112,868.72 and 45,980.56

Step by Step Solution

1. Step 1: Write the proportion equation
   81,791.30 : 112,868.72 = 45,980.56 : x
2. Step 2: Convert to fraction form
   81,791.30/112,868.72 = 45,980.56/x
3. Step 3: Cross multiply
   81,791.30x = 112,868.72 × 45,980.56
4. Step 4: Simplify right side
   81,791.30x = 5,189,766,952.08
5. Step 5: Solve for x
   x = 5,189,766,952.08/81,791.30
6. Step 6: Final answer
   x = 63,451.33