Finding the Fourth Proportional to 427,139,595.34, 589,475,528.37 and 238,956,663.25

Step by Step Solution

1. Step 1: Write the proportion equation
   427,139,595.34 : 589,475,528.37 = 238,956,663.25 : x
2. Step 2: Convert to fraction form
   427,139,595.34/589,475,528.37 = 238,956,663.25/x
3. Step 3: Cross multiply
   427,139,595.34x = 589,475,528.37 × 238,956,663.25
4. Step 4: Simplify right side
   427,139,595.34x = 140,859,105,326,825,920
5. Step 5: Solve for x
   x = 140,859,105,326,825,920/427,139,595.34
6. Step 6: Final answer
   x = 329,772,998.95