Finding the Fourth Proportional to 70,388.42, 105,581.75 and 17,080.84

Step by Step Solution

1. Step 1: Write the proportion equation
   70,388.42 : 105,581.75 = 17,080.84 : x
2. Step 2: Convert to fraction form
   70,388.42/105,581.75 = 17,080.84/x
3. Step 3: Cross multiply
   70,388.42x = 105,581.75 × 17,080.84
4. Step 4: Simplify right side
   70,388.42x = 1,803,425,025.24
5. Step 5: Solve for x
   x = 1,803,425,025.24/70,388.42
6. Step 6: Final answer
   x = 25,621.05