Finding the Fourth Proportional to 81,846.72, 112,949.64 and 48,312.72

Step by Step Solution

1. Step 1: Write the proportion equation
   81,846.72 : 112,949.64 = 48,312.72 : x
2. Step 2: Convert to fraction form
   81,846.72/112,949.64 = 48,312.72/x
3. Step 3: Cross multiply
   81,846.72x = 112,949.64 × 48,312.72
4. Step 4: Simplify right side
   81,846.72x = 5,456,904,331.42
5. Step 5: Solve for x
   x = 5,456,904,331.42/81,846.72
6. Step 6: Final answer
   x = 66,672.24