Finding the Fourth Proportional to 673,748.16, 929,770.56 and 371,940

Step by Step Solution

1. Step 1: Write the proportion equation
   673,748.16 : 929,770.56 = 371,940 : x
2. Step 2: Convert to fraction form
   673,748.16/929,770.56 = 371,940/x
3. Step 3: Cross multiply
   673,748.16x = 929,770.56 × 371,940
4. Step 4: Simplify right side
   673,748.16x = 345,818,862,086.40
5. Step 5: Solve for x
   x = 345,818,862,086.40/673,748.16
6. Step 6: Final answer
   x = 513,276.15