Finding the Fourth Proportional to 36,729.94, 55,078.50 and 10,428.52

Step by Step Solution

1. Step 1: Write the proportion equation
   36,729.94 : 55,078.50 = 10,428.52 : x
2. Step 2: Convert to fraction form
   36,729.94/55,078.50 = 10,428.52/x
3. Step 3: Cross multiply
   36,729.94x = 55,078.50 × 10,428.52
4. Step 4: Simplify right side
   36,729.94x = 574,387,238.82
5. Step 5: Solve for x
   x = 574,387,238.82/36,729.94
6. Step 6: Final answer
   x = 15,638.12