Finding the Fourth Proportional to 143,391.47, 215,091.32 and 48,621.94

Step by Step Solution

1. Step 1: Write the proportion equation
   143,391.47 : 215,091.32 = 48,621.94 : x
2. Step 2: Convert to fraction form
   143,391.47/215,091.32 = 48,621.94/x
3. Step 3: Cross multiply
   143,391.47x = 215,091.32 × 48,621.94
4. Step 4: Simplify right side
   143,391.47x = 10,458,156,474.72
5. Step 5: Solve for x
   x = 10,458,156,474.72/143,391.47
6. Step 6: Final answer
   x = 72,934.30