Finding the Fourth Proportional to 123,538.50, 170,483.27 and 66,949.88

Step by Step Solution

1. Step 1: Write the proportion equation
   123,538.50 : 170,483.27 = 66,949.88 : x
2. Step 2: Convert to fraction form
   123,538.50/170,483.27 = 66,949.88/x
3. Step 3: Cross multiply
   123,538.50x = 170,483.27 × 66,949.88
4. Step 4: Simplify right side
   123,538.50x = 11,413,833,783.47
5. Step 5: Solve for x
   x = 11,413,833,783.47/123,538.50
6. Step 6: Final answer
   x = 92,390.90