Finding the Fourth Proportional to 34,965.42, 52,452.71 and 12,789.24

Step by Step Solution

1. Step 1: Write the proportion equation
   34,965.42 : 52,452.71 = 12,789.24 : x
2. Step 2: Convert to fraction form
   34,965.42/52,452.71 = 12,789.24/x
3. Step 3: Cross multiply
   34,965.42x = 52,452.71 × 12,789.24
4. Step 4: Simplify right side
   34,965.42x = 670,830,232.89
5. Step 5: Solve for x
   x = 670,830,232.89/34,965.42
6. Step 6: Final answer
   x = 19,185.53