Finding the Fourth Proportional to 644,167.59, 966,126.71 and 194,783.10

Step by Step Solution

1. Step 1: Write the proportion equation
   644,167.59 : 966,126.71 = 194,783.10 : x
2. Step 2: Convert to fraction form
   644,167.59/966,126.71 = 194,783.10/x
3. Step 3: Cross multiply
   644,167.59x = 966,126.71 × 194,783.10
4. Step 4: Simplify right side
   644,167.59x = 188,185,154,592.69
5. Step 5: Solve for x
   x = 188,185,154,592.69/644,167.59
6. Step 6: Final answer
   x = 292,136.95