Finding the Fourth Proportional to 143,651.31, 215,667.41 and 122,725.82

Step by Step Solution

1. Step 1: Write the proportion equation
   143,651.31 : 215,667.41 = 122,725.82 : x
2. Step 2: Convert to fraction form
   143,651.31/215,667.41 = 122,725.82/x
3. Step 3: Cross multiply
   143,651.31x = 215,667.41 × 122,725.82
4. Step 4: Simplify right side
   143,651.31x = 26,467,959,739.53
5. Step 5: Solve for x
   x = 26,467,959,739.53/143,651.31
6. Step 6: Final answer
   x = 184,251.43