Finding the Fourth Proportional to 56,938.32, 78,574.59 and 31,787.82

Step by Step Solution

1. Step 1: Write the proportion equation
   56,938.32 : 78,574.59 = 31,787.82 : x
2. Step 2: Convert to fraction form
   56,938.32/78,574.59 = 31,787.82/x
3. Step 3: Cross multiply
   56,938.32x = 78,574.59 × 31,787.82
4. Step 4: Simplify right side
   56,938.32x = 2,497,714,923.49
5. Step 5: Solve for x
   x = 2,497,714,923.49/56,938.32
6. Step 6: Final answer
   x = 43,867.03