Finding the Fourth Proportional to 42,378.69, 63,588.69 and 17,426.25

Step by Step Solution

1. Step 1: Write the proportion equation
   42,378.69 : 63,588.69 = 17,426.25 : x
2. Step 2: Convert to fraction form
   42,378.69/63,588.69 = 17,426.25/x
3. Step 3: Cross multiply
   42,378.69x = 63,588.69 × 17,426.25
4. Step 4: Simplify right side
   42,378.69x = 1,108,112,409.11
5. Step 5: Solve for x
   x = 1,108,112,409.11/42,378.69
6. Step 6: Final answer
   x = 26,147.87