Finding the Fourth Proportional to 70,003.21, 105,004.61 and 17,412.69

Step by Step Solution

1. Step 1: Write the proportion equation
   70,003.21 : 105,004.61 = 17,412.69 : x
2. Step 2: Convert to fraction form
   70,003.21/105,004.61 = 17,412.69/x
3. Step 3: Cross multiply
   70,003.21x = 105,004.61 × 17,412.69
4. Step 4: Simplify right side
   70,003.21x = 1,828,412,635.44
5. Step 5: Solve for x
   x = 1,828,412,635.44/70,003.21
6. Step 6: Final answer
   x = 26,118.98