Finding the Fourth Proportional to 147,158.63, 203,085.57 and 86,731.82

Step by Step Solution

1. Step 1: Write the proportion equation
   147,158.63 : 203,085.57 = 86,731.82 : x
2. Step 2: Convert to fraction form
   147,158.63/203,085.57 = 86,731.82/x
3. Step 3: Cross multiply
   147,158.63x = 203,085.57 × 86,731.82
4. Step 4: Simplify right side
   147,158.63x = 17,613,981,101.84
5. Step 5: Solve for x
   x = 17,613,981,101.84/147,158.63
6. Step 6: Final answer
   x = 119,693.84