Finding the Fourth Proportional to 47,114.72, 64,991.28 and 29,420

Step by Step Solution

1. Step 1: Write the proportion equation
   47,114.72 : 64,991.28 = 29,420 : x
2. Step 2: Convert to fraction form
   47,114.72/64,991.28 = 29,420/x
3. Step 3: Cross multiply
   47,114.72x = 64,991.28 × 29,420
4. Step 4: Simplify right side
   47,114.72x = 1,912,043,457.60
5. Step 5: Solve for x
   x = 1,912,043,457.60/47,114.72
6. Step 6: Final answer
   x = 40,582.72