Finding the Fourth Proportional to 70,819.32, 106,179.78 and 31,354.91

Step by Step Solution

1. Step 1: Write the proportion equation
   70,819.32 : 106,179.78 = 31,354.91 : x
2. Step 2: Convert to fraction form
   70,819.32/106,179.78 = 31,354.91/x
3. Step 3: Cross multiply
   70,819.32x = 106,179.78 × 31,354.91
4. Step 4: Simplify right side
   70,819.32x = 3,329,257,445.72
5. Step 5: Solve for x
   x = 3,329,257,445.72/70,819.32
6. Step 6: Final answer
   x = 47,010.58