Finding the Fourth Proportional to 35,790.72, 53,691.84 and 12,100.56

Step by Step Solution

1. Step 1: Write the proportion equation
   35,790.72 : 53,691.84 = 12,100.56 : x
2. Step 2: Convert to fraction form
   35,790.72/53,691.84 = 12,100.56/x
3. Step 3: Cross multiply
   35,790.72x = 53,691.84 × 12,100.56
4. Step 4: Simplify right side
   35,790.72x = 649,701,331.43
5. Step 5: Solve for x
   x = 649,701,331.43/35,790.72
6. Step 6: Final answer
   x = 18,152.79