Finding the Fourth Proportional to 57,033.72, 78,703.32 and 31,538.56

Step by Step Solution

1. Step 1: Write the proportion equation
   57,033.72 : 78,703.32 = 31,538.56 : x
2. Step 2: Convert to fraction form
   57,033.72/78,703.32 = 31,538.56/x
3. Step 3: Cross multiply
   57,033.72x = 78,703.32 × 31,538.56
4. Step 4: Simplify right side
   57,033.72x = 2,482,189,380.02
5. Step 5: Solve for x
   x = 2,482,189,380.02/57,033.72
6. Step 6: Final answer
   x = 43,521.44