Finding the Fourth Proportional to 35,780.01, 53,674.88 and 12,408.27

Step by Step Solution

1. Step 1: Write the proportion equation
   35,780.01 : 53,674.88 = 12,408.27 : x
2. Step 2: Convert to fraction form
   35,780.01/53,674.88 = 12,408.27/x
3. Step 3: Cross multiply
   35,780.01x = 53,674.88 × 12,408.27
4. Step 4: Simplify right side
   35,780.01x = 666,012,341.22
5. Step 5: Solve for x
   x = 666,012,341.22/35,780.01
6. Step 6: Final answer
   x = 18,614.09