Finding the Fourth Proportional to 47,113.72, 64,989.86 and 29,419

Step by Step Solution

1. Step 1: Write the proportion equation
   47,113.72 : 64,989.86 = 29,419 : x
2. Step 2: Convert to fraction form
   47,113.72/64,989.86 = 29,419/x
3. Step 3: Cross multiply
   47,113.72x = 64,989.86 × 29,419
4. Step 4: Simplify right side
   47,113.72x = 1,911,936,691.34
5. Step 5: Solve for x
   x = 1,911,936,691.34/47,113.72
6. Step 6: Final answer
   x = 40,581.31