Finding the Fourth Proportional to 47,419.32, 71,128.71 and 19,339.23

Step by Step Solution

1. Step 1: Write the proportion equation
   47,419.32 : 71,128.71 = 19,339.23 : x
2. Step 2: Convert to fraction form
   47,419.32/71,128.71 = 19,339.23/x
3. Step 3: Cross multiply
   47,419.32x = 71,128.71 × 19,339.23
4. Step 4: Simplify right side
   47,419.32x = 1,375,574,482.29
5. Step 5: Solve for x
   x = 1,375,574,482.29/47,419.32
6. Step 6: Final answer
   x = 29,008.73