Finding the Fourth Proportional to 398,834,434.38, 550,483,352.46 and 233,875,147.98

Step by Step Solution

1. Step 1: Write the proportion equation
   398,834,434.38 : 550,483,352.46 = 233,875,147.98 : x
2. Step 2: Convert to fraction form
   398,834,434.38/550,483,352.46 = 233,875,147.98/x
3. Step 3: Cross multiply
   398,834,434.38x = 550,483,352.46 × 233,875,147.98
4. Step 4: Simplify right side
   398,834,434.38x = 128,744,375,517,109,008
5. Step 5: Solve for x
   x = 128,744,375,517,109,008/398,834,434.38
6. Step 6: Final answer
   x = 322,801,554.78