Finding the Fourth Proportional to 147,298.50, 203,278.59 and 86,871.69

Step by Step Solution

1. Step 1: Write the proportion equation
   147,298.50 : 203,278.59 = 86,871.69 : x
2. Step 2: Convert to fraction form
   147,298.50/203,278.59 = 86,871.69/x
3. Step 3: Cross multiply
   147,298.50x = 203,278.59 × 86,871.69
4. Step 4: Simplify right side
   147,298.50x = 17,659,154,654.12
5. Step 5: Solve for x
   x = 17,659,154,654.12/147,298.50
6. Step 6: Final answer
   x = 119,886.86