Finding the Fourth Proportional to 123,238.20, 185,003.10 and 69,972.60

Step by Step Solution

1. Step 1: Write the proportion equation
   123,238.20 : 185,003.10 = 69,972.60 : x
2. Step 2: Convert to fraction form
   123,238.20/185,003.10 = 69,972.60/x
3. Step 3: Cross multiply
   123,238.20x = 185,003.10 × 69,972.60
4. Step 4: Simplify right side
   123,238.20x = 12,945,147,915.06
5. Step 5: Solve for x
   x = 12,945,147,915.06/123,238.20
6. Step 6: Final answer
   x = 105,041.68