Finding the Fourth Proportional to 392,291,936.32, 541,362,870 and 227,375,164.96

Step by Step Solution

1. Step 1: Write the proportion equation
   392,291,936.32 : 541,362,870 = 227,375,164.96 : x
2. Step 2: Convert to fraction form
   392,291,936.32/541,362,870 = 227,375,164.96/x
3. Step 3: Cross multiply
   392,291,936.32x = 541,362,870 × 227,375,164.96
4. Step 4: Simplify right side
   392,291,936.32x = 123,092,471,869,469,040
5. Step 5: Solve for x
   x = 123,092,471,869,469,040/392,291,936.32
6. Step 6: Final answer
   x = 313,777,726.42