Finding the Fourth Proportional to 52,664.70, 72,678.15 and 31,445.82

Step by Step Solution

1. Step 1: Write the proportion equation
   52,664.70 : 72,678.15 = 31,445.82 : x
2. Step 2: Convert to fraction form
   52,664.70/72,678.15 = 31,445.82/x
3. Step 3: Cross multiply
   52,664.70x = 72,678.15 × 31,445.82
4. Step 4: Simplify right side
   52,664.70x = 2,285,424,022.83
5. Step 5: Solve for x
   x = 2,285,424,022.83/52,664.70
6. Step 6: Final answer
   x = 43,395.75