Finding the Fourth Proportional to 498,934.89, 748,875.50 and 308,820.18

Step by Step Solution

1. Step 1: Write the proportion equation
   498,934.89 : 748,875.50 = 308,820.18 : x
2. Step 2: Convert to fraction form
   498,934.89/748,875.50 = 308,820.18/x
3. Step 3: Cross multiply
   498,934.89x = 748,875.50 × 308,820.18
4. Step 4: Simplify right side
   498,934.89x = 231,267,865,163.49
5. Step 5: Solve for x
   x = 231,267,865,163.49/498,934.89
6. Step 6: Final answer
   x = 463,523.14