Finding the Fourth Proportional to 374,483,182.89, 516,825,691.25 and 215,718,792.69

Step by Step Solution

1. Step 1: Write the proportion equation
   374,483,182.89 : 516,825,691.25 = 215,718,792.69 : x
2. Step 2: Convert to fraction form
   374,483,182.89/516,825,691.25 = 215,718,792.69/x
3. Step 3: Cross multiply
   374,483,182.89x = 516,825,691.25 × 215,718,792.69
4. Step 4: Simplify right side
   374,483,182.89x = 111,489,014,146,546,096
5. Step 5: Solve for x
   x = 111,489,014,146,546,096/374,483,182.89
6. Step 6: Final answer
   x = 297,714,341.37