Finding the Fourth Proportional to 42,465.18, 63,705.43 and 17,491.60

Step by Step Solution

1. Step 1: Write the proportion equation
   42,465.18 : 63,705.43 = 17,491.60 : x
2. Step 2: Convert to fraction form
   42,465.18/63,705.43 = 17,491.60/x
3. Step 3: Cross multiply
   42,465.18x = 63,705.43 × 17,491.60
4. Step 4: Simplify right side
   42,465.18x = 1,114,309,580.86
5. Step 5: Solve for x
   x = 1,114,309,580.86/42,465.18
6. Step 6: Final answer
   x = 26,240.55