Finding the Fourth Proportional to 42,312.20, 63,457.86 and 17,359.34

Step by Step Solution

1. Step 1: Write the proportion equation
   42,312.20 : 63,457.86 = 17,359.34 : x
2. Step 2: Convert to fraction form
   42,312.20/63,457.86 = 17,359.34/x
3. Step 3: Cross multiply
   42,312.20x = 63,457.86 × 17,359.34
4. Step 4: Simplify right side
   42,312.20x = 1,101,586,315.22
5. Step 5: Solve for x
   x = 1,101,586,315.22/42,312.20
6. Step 6: Final answer
   x = 26,034.72