Finding the Fourth Proportional to 359,156, 538,736.70 and 159,422.69

Step by Step Solution

1. Step 1: Write the proportion equation
   359,156 : 538,736.70 = 159,422.69 : x
2. Step 2: Convert to fraction form
   359,156/538,736.70 = 159,422.69/x
3. Step 3: Cross multiply
   359,156x = 538,736.70 × 159,422.69
4. Step 4: Simplify right side
   359,156x = 85,886,853,915.72
5. Step 5: Solve for x
   x = 85,886,853,915.72/359,156
6. Step 6: Final answer
   x = 239,135.23