Finding the Fourth Proportional to 34,919.38, 52,356.12 and 12,728.62

Step by Step Solution

1. Step 1: Write the proportion equation
   34,919.38 : 52,356.12 = 12,728.62 : x
2. Step 2: Convert to fraction form
   34,919.38/52,356.12 = 12,728.62/x
3. Step 3: Cross multiply
   34,919.38x = 52,356.12 × 12,728.62
4. Step 4: Simplify right side
   34,919.38x = 666,421,156.15
5. Step 5: Solve for x
   x = 666,421,156.15/34,919.38
6. Step 6: Final answer
   x = 19,084.56