Finding the Fourth Proportional to 81,463.78, 112,423.57 and 45,162.91

Step by Step Solution

1. Step 1: Write the proportion equation
   81,463.78 : 112,423.57 = 45,162.91 : x
2. Step 2: Convert to fraction form
   81,463.78/112,423.57 = 45,162.91/x
3. Step 3: Cross multiply
   81,463.78x = 112,423.57 × 45,162.91
4. Step 4: Simplify right side
   81,463.78x = 5,077,376,066.25
5. Step 5: Solve for x
   x = 5,077,376,066.25/81,463.78
6. Step 6: Final answer
   x = 62,326.79