Finding the Fourth Proportional to 143,323.80, 215,072.10 and 49,895.16

Step by Step Solution

1. Step 1: Write the proportion equation
   143,323.80 : 215,072.10 = 49,895.16 : x
2. Step 2: Convert to fraction form
   143,323.80/215,072.10 = 49,895.16/x
3. Step 3: Cross multiply
   143,323.80x = 215,072.10 × 49,895.16
4. Step 4: Simplify right side
   143,323.80x = 10,731,056,841.04
5. Step 5: Solve for x
   x = 10,731,056,841.04/143,323.80
6. Step 6: Final answer
   x = 74,872.82