Finding the Fourth Proportional to 156,086.20, 234,105.54 and 50,905

Step by Step Solution

1. Step 1: Write the proportion equation
   156,086.20 : 234,105.54 = 50,905 : x
2. Step 2: Convert to fraction form
   156,086.20/234,105.54 = 50,905/x
3. Step 3: Cross multiply
   156,086.20x = 234,105.54 × 50,905
4. Step 4: Simplify right side
   156,086.20x = 11,917,142,513.70
5. Step 5: Solve for x
   x = 11,917,142,513.70/156,086.20
6. Step 6: Final answer
   x = 76,349.75