Finding the Fourth Proportional to 49,298.88, 73,942.56 and 12,360

Step by Step Solution

1. Step 1: Write the proportion equation
   49,298.88 : 73,942.56 = 12,360 : x
2. Step 2: Convert to fraction form
   49,298.88/73,942.56 = 12,360/x
3. Step 3: Cross multiply
   49,298.88x = 73,942.56 × 12,360
4. Step 4: Simplify right side
   49,298.88x = 913,930,041.60
5. Step 5: Solve for x
   x = 913,930,041.60/49,298.88
6. Step 6: Final answer
   x = 18,538.56