Finding the Fourth Proportional to 42,388.86, 63,603.94 and 17,436.38

Step by Step Solution

1. Step 1: Write the proportion equation
   42,388.86 : 63,603.94 = 17,436.38 : x
2. Step 2: Convert to fraction form
   42,388.86/63,603.94 = 17,436.38/x
3. Step 3: Cross multiply
   42,388.86x = 63,603.94 × 17,436.38
4. Step 4: Simplify right side
   42,388.86x = 1,109,022,467.34
5. Step 5: Solve for x
   x = 1,109,022,467.34/42,388.86
6. Step 6: Final answer
   x = 26,163.06