Finding the Fourth Proportional to 57,388.79, 79,196.45 and 31,894.34

Step by Step Solution

1. Step 1: Write the proportion equation
   57,388.79 : 79,196.45 = 31,894.34 : x
2. Step 2: Convert to fraction form
   57,388.79/79,196.45 = 31,894.34/x
3. Step 3: Cross multiply
   57,388.79x = 79,196.45 × 31,894.34
4. Step 4: Simplify right side
   57,388.79x = 2,525,918,780.82
5. Step 5: Solve for x
   x = 2,525,918,780.82/57,388.79
6. Step 6: Final answer
   x = 44,014.15