Finding the Fourth Proportional to 81,320.99, 112,223.06 and 45,519.53

Step by Step Solution

1. Step 1: Write the proportion equation
   81,320.99 : 112,223.06 = 45,519.53 : x
2. Step 2: Convert to fraction form
   81,320.99/112,223.06 = 45,519.53/x
3. Step 3: Cross multiply
   81,320.99x = 112,223.06 × 45,519.53
4. Step 4: Simplify right side
   81,320.99x = 5,108,340,157.65
5. Step 5: Solve for x
   x = 5,108,340,157.65/81,320.99
6. Step 6: Final answer
   x = 62,817.00