Finding the Fourth Proportional to 34,139.94, 51,174.72 and 13,074.24

Step by Step Solution

1. Step 1: Write the proportion equation
   34,139.94 : 51,174.72 = 13,074.24 : x
2. Step 2: Convert to fraction form
   34,139.94/51,174.72 = 13,074.24/x
3. Step 3: Cross multiply
   34,139.94x = 51,174.72 × 13,074.24
4. Step 4: Simplify right side
   34,139.94x = 669,070,571.21
5. Step 5: Solve for x
   x = 669,070,571.21/34,139.94
6. Step 6: Final answer
   x = 19,597.88