Finding the Fourth Proportional to 42,389.76, 63,425.52 and 26,384.16

Step by Step Solution

1. Step 1: Write the proportion equation
   42,389.76 : 63,425.52 = 26,384.16 : x
2. Step 2: Convert to fraction form
   42,389.76/63,425.52 = 26,384.16/x
3. Step 3: Cross multiply
   42,389.76x = 63,425.52 × 26,384.16
4. Step 4: Simplify right side
   42,389.76x = 1,673,429,067.76
5. Step 5: Solve for x
   x = 1,673,429,067.76/42,389.76
6. Step 6: Final answer
   x = 39,477.20