Finding the Fourth Proportional to 81,053.32, 111,912.84 and 52,389.94

Step by Step Solution

1. Step 1: Write the proportion equation
   81,053.32 : 111,912.84 = 52,389.94 : x
2. Step 2: Convert to fraction form
   81,053.32/111,912.84 = 52,389.94/x
3. Step 3: Cross multiply
   81,053.32x = 111,912.84 × 52,389.94
4. Step 4: Simplify right side
   81,053.32x = 5,863,106,972.83
5. Step 5: Solve for x
   x = 5,863,106,972.83/81,053.32
6. Step 6: Final answer
   x = 72,336.42