Finding the Fourth Proportional to 71,164.78, 106,743.52 and 21,245.29

Step by Step Solution

1. Step 1: Write the proportion equation
   71,164.78 : 106,743.52 = 21,245.29 : x
2. Step 2: Convert to fraction form
   71,164.78/106,743.52 = 21,245.29/x
3. Step 3: Cross multiply
   71,164.78x = 106,743.52 × 21,245.29
4. Step 4: Simplify right side
   71,164.78x = 2,267,797,038.02
5. Step 5: Solve for x
   x = 2,267,797,038.02/71,164.78
6. Step 6: Final answer
   x = 31,866.85