Finding the Fourth Proportional to 210,262.50, 290,162.52 and 134,811

Step by Step Solution

1. Step 1: Write the proportion equation
   210,262.50 : 290,162.52 = 134,811 : x
2. Step 2: Convert to fraction form
   210,262.50/290,162.52 = 134,811/x
3. Step 3: Cross multiply
   210,262.50x = 290,162.52 × 134,811
4. Step 4: Simplify right side
   210,262.50x = 39,117,099,483.72
5. Step 5: Solve for x
   x = 39,117,099,483.72/210,262.50
6. Step 6: Final answer
   x = 186,039.35