Finding the Fourth Proportional to 35,389.92, 53,094.72 and 12,018.24

Step by Step Solution

1. Step 1: Write the proportion equation
   35,389.92 : 53,094.72 = 12,018.24 : x
2. Step 2: Convert to fraction form
   35,389.92/53,094.72 = 12,018.24/x
3. Step 3: Cross multiply
   35,389.92x = 53,094.72 × 12,018.24
4. Step 4: Simplify right side
   35,389.92x = 638,105,087.69
5. Step 5: Solve for x
   x = 638,105,087.69/35,389.92
6. Step 6: Final answer
   x = 18,030.70