Finding the Fourth Proportional to 57,042, 78,714.72 and 31,546.84

Step by Step Solution

1. Step 1: Write the proportion equation
   57,042 : 78,714.72 = 31,546.84 : x
2. Step 2: Convert to fraction form
   57,042/78,714.72 = 31,546.84/x
3. Step 3: Cross multiply
   57,042x = 78,714.72 × 31,546.84
4. Step 4: Simplify right side
   57,042x = 2,483,200,677.48
5. Step 5: Solve for x
   x = 2,483,200,677.48/57,042
6. Step 6: Final answer
   x = 43,532.85