Finding the Fourth Proportional to 144,022.59, 215,903.21 and 50,477.31

Step by Step Solution

1. Step 1: Write the proportion equation
   144,022.59 : 215,903.21 = 50,477.31 : x
2. Step 2: Convert to fraction form
   144,022.59/215,903.21 = 50,477.31/x
3. Step 3: Cross multiply
   144,022.59x = 215,903.21 × 50,477.31
4. Step 4: Simplify right side
   144,022.59x = 10,898,213,008.78
5. Step 5: Solve for x
   x = 10,898,213,008.78/144,022.59
6. Step 6: Final answer
   x = 75,670.16