Finding the Fourth Proportional to 50,156.88, 69,192 and 42,196.20

Step by Step Solution

1. Step 1: Write the proportion equation
   50,156.88 : 69,192 = 42,196.20 : x
2. Step 2: Convert to fraction form
   50,156.88/69,192 = 42,196.20/x
3. Step 3: Cross multiply
   50,156.88x = 69,192 × 42,196.20
4. Step 4: Simplify right side
   50,156.88x = 2,919,639,470.40
5. Step 5: Solve for x
   x = 2,919,639,470.40/50,156.88
6. Step 6: Final answer
   x = 58,210.15