Finding the Fourth Proportional to 81,345.27, 112,243.55 and 45,536.79

Step by Step Solution

1. Step 1: Write the proportion equation
   81,345.27 : 112,243.55 = 45,536.79 : x
2. Step 2: Convert to fraction form
   81,345.27/112,243.55 = 45,536.79/x
3. Step 3: Cross multiply
   81,345.27x = 112,243.55 × 45,536.79
4. Step 4: Simplify right side
   81,345.27x = 5,111,210,737.52
5. Step 5: Solve for x
   x = 5,111,210,737.52/81,345.27
6. Step 6: Final answer
   x = 62,833.53