Finding the Fourth Proportional to 114,417.86, 171,638.16 and 42,390.03

Step by Step Solution

1. Step 1: Write the proportion equation
   114,417.86 : 171,638.16 = 42,390.03 : x
2. Step 2: Convert to fraction form
   114,417.86/171,638.16 = 42,390.03/x
3. Step 3: Cross multiply
   114,417.86x = 171,638.16 × 42,390.03
4. Step 4: Simplify right side
   114,417.86x = 7,275,747,236.23
5. Step 5: Solve for x
   x = 7,275,747,236.23/114,417.86
6. Step 6: Final answer
   x = 63,589.26