Finding the Fourth Proportional to 35,446.50, 53,181.84 and 12,089.34

Step by Step Solution

1. Step 1: Write the proportion equation
   35,446.50 : 53,181.84 = 12,089.34 : x
2. Step 2: Convert to fraction form
   35,446.50/53,181.84 = 12,089.34/x
3. Step 3: Cross multiply
   35,446.50x = 53,181.84 × 12,089.34
4. Step 4: Simplify right side
   35,446.50x = 642,933,345.59
5. Step 5: Solve for x
   x = 642,933,345.59/35,446.50
6. Step 6: Final answer
   x = 18,138.13