Finding the Fourth Proportional to 143,622.72, 215,532.51 and 50,128.47

Step by Step Solution

1. Step 1: Write the proportion equation
   143,622.72 : 215,532.51 = 50,128.47 : x
2. Step 2: Convert to fraction form
   143,622.72/215,532.51 = 50,128.47/x
3. Step 3: Cross multiply
   143,622.72x = 215,532.51 × 50,128.47
4. Step 4: Simplify right side
   143,622.72x = 10,804,314,961.56
5. Step 5: Solve for x
   x = 10,804,314,961.56/143,622.72
6. Step 6: Final answer
   x = 75,227.06