Finding the Fourth Proportional to 57,036.94, 78,709.54 and 31,544.72

Step by Step Solution

1. Step 1: Write the proportion equation
   57,036.94 : 78,709.54 = 31,544.72 : x
2. Step 2: Convert to fraction form
   57,036.94/78,709.54 = 31,544.72/x
3. Step 3: Cross multiply
   57,036.94x = 78,709.54 × 31,544.72
4. Step 4: Simplify right side
   57,036.94x = 2,482,870,400.63
5. Step 5: Solve for x
   x = 2,482,870,400.63/57,036.94
6. Step 6: Final answer
   x = 43,530.92