Finding the Fourth Proportional to 70,498.50, 105,750.63 and 17,909.34

Step by Step Solution

1. Step 1: Write the proportion equation
   70,498.50 : 105,750.63 = 17,909.34 : x
2. Step 2: Convert to fraction form
   70,498.50/105,750.63 = 17,909.34/x
3. Step 3: Cross multiply
   70,498.50x = 105,750.63 × 17,909.34
4. Step 4: Simplify right side
   70,498.50x = 1,893,923,987.88
5. Step 5: Solve for x
   x = 1,893,923,987.88/70,498.50
6. Step 6: Final answer
   x = 26,864.74