Finding the Fourth Proportional to 42,590.56, 63,842.88 and 17,644.24

Step by Step Solution

1. Step 1: Write the proportion equation
   42,590.56 : 63,842.88 = 17,644.24 : x
2. Step 2: Convert to fraction form
   42,590.56/63,842.88 = 17,644.24/x
3. Step 3: Cross multiply
   42,590.56x = 63,842.88 × 17,644.24
4. Step 4: Simplify right side
   42,590.56x = 1,126,459,097.01
5. Step 5: Solve for x
   x = 1,126,459,097.01/42,590.56
6. Step 6: Final answer
   x = 26,448.56