Finding the Fourth Proportional to 59,131.36, 81,614.64 and 40,276

Step by Step Solution

1. Step 1: Write the proportion equation
   59,131.36 : 81,614.64 = 40,276 : x
2. Step 2: Convert to fraction form
   59,131.36/81,614.64 = 40,276/x
3. Step 3: Cross multiply
   59,131.36x = 81,614.64 × 40,276
4. Step 4: Simplify right side
   59,131.36x = 3,287,111,240.64
5. Step 5: Solve for x
   x = 3,287,111,240.64/59,131.36
6. Step 6: Final answer
   x = 55,589.98