Finding the Fourth Proportional to 113,218.78, 169,667.24 and 83,402.14

Step by Step Solution

1. Step 1: Write the proportion equation
   113,218.78 : 169,667.24 = 83,402.14 : x
2. Step 2: Convert to fraction form
   113,218.78/169,667.24 = 83,402.14/x
3. Step 3: Cross multiply
   113,218.78x = 169,667.24 × 83,402.14
4. Step 4: Simplify right side
   113,218.78x = 14,150,610,903.89
5. Step 5: Solve for x
   x = 14,150,610,903.89/113,218.78
6. Step 6: Final answer
   x = 124,984.66