Finding the Fourth Proportional to 123,688.37, 170,675.55 and 69,243.53

Step by Step Solution

1. Step 1: Write the proportion equation
   123,688.37 : 170,675.55 = 69,243.53 : x
2. Step 2: Convert to fraction form
   123,688.37/170,675.55 = 69,243.53/x
3. Step 3: Cross multiply
   123,688.37x = 170,675.55 × 69,243.53
4. Step 4: Simplify right side
   123,688.37x = 11,818,176,713.31
5. Step 5: Solve for x
   x = 11,818,176,713.31/123,688.37
6. Step 6: Final answer
   x = 95,548.00