Finding the Fourth Proportional to 37,151.12, 55,724.72 and 12,187.88

Step by Step Solution

1. Step 1: Write the proportion equation
   37,151.12 : 55,724.72 = 12,187.88 : x
2. Step 2: Convert to fraction form
   37,151.12/55,724.72 = 12,187.88/x
3. Step 3: Cross multiply
   37,151.12x = 55,724.72 × 12,187.88
4. Step 4: Simplify right side
   37,151.12x = 679,166,200.39
5. Step 5: Solve for x
   x = 679,166,200.39/37,151.12
6. Step 6: Final answer
   x = 18,281.18