Finding the Fourth Proportional to 81,079.42, 111,888.54 and 45,270.04

Step by Step Solution

1. Step 1: Write the proportion equation
   81,079.42 : 111,888.54 = 45,270.04 : x
2. Step 2: Convert to fraction form
   81,079.42/111,888.54 = 45,270.04/x
3. Step 3: Cross multiply
   81,079.42x = 111,888.54 × 45,270.04
4. Step 4: Simplify right side
   81,079.42x = 5,065,198,681.34
5. Step 5: Solve for x
   x = 5,065,198,681.34/81,079.42
6. Step 6: Final answer
   x = 62,472.06