Finding the Fourth Proportional to 647,870.26, 971,814.03 and 227,158.42

Step by Step Solution

1. Step 1: Write the proportion equation
   647,870.26 : 971,814.03 = 227,158.42 : x
2. Step 2: Convert to fraction form
   647,870.26/971,814.03 = 227,158.42/x
3. Step 3: Cross multiply
   647,870.26x = 971,814.03 × 227,158.42
4. Step 4: Simplify right side
   647,870.26x = 220,755,739,588.63
5. Step 5: Solve for x
   x = 220,755,739,588.63/647,870.26
6. Step 6: Final answer
   x = 340,740.66