Finding the Fourth Proportional to 151,916.21, 227,901.99 and 52,086.50

Step by Step Solution

1. Step 1: Write the proportion equation
   151,916.21 : 227,901.99 = 52,086.50 : x
2. Step 2: Convert to fraction form
   151,916.21/227,901.99 = 52,086.50/x
3. Step 3: Cross multiply
   151,916.21x = 227,901.99 × 52,086.50
4. Step 4: Simplify right side
   151,916.21x = 11,870,617,002.14
5. Step 5: Solve for x
   x = 11,870,617,002.14/151,916.21
6. Step 6: Final answer
   x = 78,139.24