Finding the Fourth Proportional to 749,142.56, 1,123,684.05 and 412,850

Step by Step Solution

1. Step 1: Write the proportion equation
   749,142.56 : 1,123,684.05 = 412,850 : x
2. Step 2: Convert to fraction form
   749,142.56/1,123,684.05 = 412,850/x
3. Step 3: Cross multiply
   749,142.56x = 1,123,684.05 × 412,850
4. Step 4: Simplify right side
   749,142.56x = 463,912,960,042.50
5. Step 5: Solve for x
   x = 463,912,960,042.50/749,142.56
6. Step 6: Final answer
   x = 619,258.58