Finding the Fourth Proportional to 42,598.56, 63,927.72 and 17,639.04

Step by Step Solution

1. Step 1: Write the proportion equation
   42,598.56 : 63,927.72 = 17,639.04 : x
2. Step 2: Convert to fraction form
   42,598.56/63,927.72 = 17,639.04/x
3. Step 3: Cross multiply
   42,598.56x = 63,927.72 × 17,639.04
4. Step 4: Simplify right side
   42,598.56x = 1,127,623,610.19
5. Step 5: Solve for x
   x = 1,127,623,610.19/42,598.56
6. Step 6: Final answer
   x = 26,470.93