Finding the Fourth Proportional to 80,953.90, 111,711.12 and 45,141.80

Step by Step Solution

1. Step 1: Write the proportion equation
   80,953.90 : 111,711.12 = 45,141.80 : x
2. Step 2: Convert to fraction form
   80,953.90/111,711.12 = 45,141.80/x
3. Step 3: Cross multiply
   80,953.90x = 111,711.12 × 45,141.80
4. Step 4: Simplify right side
   80,953.90x = 5,042,841,036.82
5. Step 5: Solve for x
   x = 5,042,841,036.82/80,953.90
6. Step 6: Final answer
   x = 62,292.75