Finding the Fourth Proportional to 36,942, 55,412.76 and 9,240

Step by Step Solution

1. Step 1: Write the proportion equation
   36,942 : 55,412.76 = 9,240 : x
2. Step 2: Convert to fraction form
   36,942/55,412.76 = 9,240/x
3. Step 3: Cross multiply
   36,942x = 55,412.76 × 9,240
4. Step 4: Simplify right side
   36,942x = 512,013,902.40
5. Step 5: Solve for x
   x = 512,013,902.40/36,942
6. Step 6: Final answer
   x = 13,859.94