Finding the Fourth Proportional to 70,112.30, 105,168.72 and 17,521.84

Step by Step Solution

1. Step 1: Write the proportion equation
   70,112.30 : 105,168.72 = 17,521.84 : x
2. Step 2: Convert to fraction form
   70,112.30/105,168.72 = 17,521.84/x
3. Step 3: Cross multiply
   70,112.30x = 105,168.72 × 17,521.84
4. Step 4: Simplify right side
   70,112.30x = 1,842,749,484.84
5. Step 5: Solve for x
   x = 1,842,749,484.84/70,112.30
6. Step 6: Final answer
   x = 26,282.83