Finding the Fourth Proportional to 152,958.54, 210,997.71 and 142,133.82

Step by Step Solution

1. Step 1: Write the proportion equation
   152,958.54 : 210,997.71 = 142,133.82 : x
2. Step 2: Convert to fraction form
   152,958.54/210,997.71 = 142,133.82/x
3. Step 3: Cross multiply
   152,958.54x = 210,997.71 × 142,133.82
4. Step 4: Simplify right side
   152,958.54x = 29,989,910,533.55
5. Step 5: Solve for x
   x = 29,989,910,533.55/152,958.54
6. Step 6: Final answer
   x = 196,065.62