Finding the Fourth Proportional to 415,073,667.65, 572,805,472.71 and 236,454,908.76

Step by Step Solution

1. Step 1: Write the proportion equation
   415,073,667.65 : 572,805,472.71 = 236,454,908.76 : x
2. Step 2: Convert to fraction form
   415,073,667.65/572,805,472.71 = 236,454,908.76/x
3. Step 3: Cross multiply
   415,073,667.65x = 572,805,472.71 × 236,454,908.76
4. Step 4: Simplify right side
   415,073,667.65x = 135,442,665,786,871,728
5. Step 5: Solve for x
   x = 135,442,665,786,871,728/415,073,667.65
6. Step 6: Final answer
   x = 326,309,945.31