Finding the Fourth Proportional to 57,134.58, 78,846.06 and 31,641.72

Step by Step Solution

1. Step 1: Write the proportion equation
   57,134.58 : 78,846.06 = 31,641.72 : x
2. Step 2: Convert to fraction form
   57,134.58/78,846.06 = 31,641.72/x
3. Step 3: Cross multiply
   57,134.58x = 78,846.06 × 31,641.72
4. Step 4: Simplify right side
   57,134.58x = 2,494,824,953.62
5. Step 5: Solve for x
   x = 2,494,824,953.62/57,134.58
6. Step 6: Final answer
   x = 43,665.76