Finding the Fourth Proportional to 147,283.98, 203,278.35 and 86,851

Step by Step Solution

1. Step 1: Write the proportion equation
   147,283.98 : 203,278.35 = 86,851 : x
2. Step 2: Convert to fraction form
   147,283.98/203,278.35 = 86,851/x
3. Step 3: Cross multiply
   147,283.98x = 203,278.35 × 86,851
4. Step 4: Simplify right side
   147,283.98x = 17,654,927,975.85
5. Step 5: Solve for x
   x = 17,654,927,975.85/147,283.98
6. Step 6: Final answer
   x = 119,869.98