Finding the Fourth Proportional to 158,345.31, 236,328.72 and 136,903.17

Step by Step Solution

1. Step 1: Write the proportion equation
   158,345.31 : 236,328.72 = 136,903.17 : x
2. Step 2: Convert to fraction form
   158,345.31/236,328.72 = 136,903.17/x
3. Step 3: Cross multiply
   158,345.31x = 236,328.72 × 136,903.17
4. Step 4: Simplify right side
   158,345.31x = 32,354,150,930.04
5. Step 5: Solve for x
   x = 32,354,150,930.04/158,345.31
6. Step 6: Final answer
   x = 204,326.55