Finding the Fourth Proportional to 78,494.43, 117,708.84 and 31,714.50

Step by Step Solution

1. Step 1: Write the proportion equation
   78,494.43 : 117,708.84 = 31,714.50 : x
2. Step 2: Convert to fraction form
   78,494.43/117,708.84 = 31,714.50/x
3. Step 3: Cross multiply
   78,494.43x = 117,708.84 × 31,714.50
4. Step 4: Simplify right side
   78,494.43x = 3,733,077,006.18
5. Step 5: Solve for x
   x = 3,733,077,006.18/78,494.43
6. Step 6: Final answer
   x = 47,558.50