Finding the Fourth Proportional to 143,077.68, 214,655.40 and 49,590.72

Step by Step Solution

1. Step 1: Write the proportion equation
   143,077.68 : 214,655.40 = 49,590.72 : x
2. Step 2: Convert to fraction form
   143,077.68/214,655.40 = 49,590.72/x
3. Step 3: Cross multiply
   143,077.68x = 214,655.40 × 49,590.72
4. Step 4: Simplify right side
   143,077.68x = 10,644,915,837.89
5. Step 5: Solve for x
   x = 10,644,915,837.89/143,077.68
6. Step 6: Final answer
   x = 74,399.56