Finding the Fourth Proportional to 19,945.13, 29,915.37 and 5,152.88

Step by Step Solution

1. Step 1: Write the proportion equation
   19,945.13 : 29,915.37 = 5,152.88 : x
2. Step 2: Convert to fraction form
   19,945.13/29,915.37 = 5,152.88/x
3. Step 3: Cross multiply
   19,945.13x = 29,915.37 × 5,152.88
4. Step 4: Simplify right side
   19,945.13x = 154,150,162.19
5. Step 5: Solve for x
   x = 154,150,162.19/19,945.13
6. Step 6: Final answer
   x = 7,728.71