Finding the Fourth Proportional to 143,648.88, 215,474.40 and 50,154.72

Step by Step Solution

1. Step 1: Write the proportion equation
   143,648.88 : 215,474.40 = 50,154.72 : x
2. Step 2: Convert to fraction form
   143,648.88/215,474.40 = 50,154.72/x
3. Step 3: Cross multiply
   143,648.88x = 215,474.40 × 50,154.72
4. Step 4: Simplify right side
   143,648.88x = 10,807,058,199.17
5. Step 5: Solve for x
   x = 10,807,058,199.17/143,648.88
6. Step 6: Final answer
   x = 75,232.46