Finding the Fourth Proportional to 37,608.42, 56,419.10 and 12,650.88

Step by Step Solution

1. Step 1: Write the proportion equation
   37,608.42 : 56,419.10 = 12,650.88 : x
2. Step 2: Convert to fraction form
   37,608.42/56,419.10 = 12,650.88/x
3. Step 3: Cross multiply
   37,608.42x = 56,419.10 × 12,650.88
4. Step 4: Simplify right side
   37,608.42x = 713,751,263.81
5. Step 5: Solve for x
   x = 713,751,263.81/37,608.42
6. Step 6: Final answer
   x = 18,978.50