Finding the Fourth Proportional to 47,499.76, 71,223.28 and 19,439.52

Step by Step Solution

1. Step 1: Write the proportion equation
   47,499.76 : 71,223.28 = 19,439.52 : x
2. Step 2: Convert to fraction form
   47,499.76/71,223.28 = 19,439.52/x
3. Step 3: Cross multiply
   47,499.76x = 71,223.28 × 19,439.52
4. Step 4: Simplify right side
   47,499.76x = 1,384,546,376.03
5. Step 5: Solve for x
   x = 1,384,546,376.03/47,499.76
6. Step 6: Final answer
   x = 29,148.49