Finding the Fourth Proportional to 56,823.72, 78,416.82 and 31,672.68

Step by Step Solution

1. Step 1: Write the proportion equation
   56,823.72 : 78,416.82 = 31,672.68 : x
2. Step 2: Convert to fraction form
   56,823.72/78,416.82 = 31,672.68/x
3. Step 3: Cross multiply
   56,823.72x = 78,416.82 × 31,672.68
4. Step 4: Simplify right side
   56,823.72x = 2,483,670,846.48
5. Step 5: Solve for x
   x = 2,483,670,846.48/56,823.72
6. Step 6: Final answer
   x = 43,708.35