Finding the Fourth Proportional to 120,991.27, 181,501.49 and 50,861.47

Step by Step Solution

1. Step 1: Write the proportion equation
   120,991.27 : 181,501.49 = 50,861.47 : x
2. Step 2: Convert to fraction form
   120,991.27/181,501.49 = 50,861.47/x
3. Step 3: Cross multiply
   120,991.27x = 181,501.49 × 50,861.47
4. Step 4: Simplify right side
   120,991.27x = 9,231,432,588.59
5. Step 5: Solve for x
   x = 9,231,432,588.59/120,991.27
6. Step 6: Final answer
   x = 76,298.34