Finding the Fourth Proportional to 30,529.10, 42,128.90 and 17,100.14

Step by Step Solution

1. Step 1: Write the proportion equation
   30,529.10 : 42,128.90 = 17,100.14 : x
2. Step 2: Convert to fraction form
   30,529.10/42,128.90 = 17,100.14/x
3. Step 3: Cross multiply
   30,529.10x = 42,128.90 × 17,100.14
4. Step 4: Simplify right side
   30,529.10x = 720,410,088.05
5. Step 5: Solve for x
   x = 720,410,088.05/30,529.10
6. Step 6: Final answer
   x = 23,597.49