Finding the Fourth Proportional to 426,798,185.31, 588,979,182.47 and 238,626,442.17

Step by Step Solution

1. Step 1: Write the proportion equation
   426,798,185.31 : 588,979,182.47 = 238,626,442.17 : x
2. Step 2: Convert to fraction form
   426,798,185.31/588,979,182.47 = 238,626,442.17/x
3. Step 3: Cross multiply
   426,798,185.31x = 588,979,182.47 × 238,626,442.17
4. Step 4: Simplify right side
   426,798,185.31x = 140,546,006,823,818,208
5. Step 5: Solve for x
   x = 140,546,006,823,818,208/426,798,185.31
6. Step 6: Final answer
   x = 329,303,196.83