Finding the Fourth Proportional to 37,091.99, 55,646.75 and 12,131.95

Step by Step Solution

1. Step 1: Write the proportion equation
   37,091.99 : 55,646.75 = 12,131.95 : x
2. Step 2: Convert to fraction form
   37,091.99/55,646.75 = 12,131.95/x
3. Step 3: Cross multiply
   37,091.99x = 55,646.75 × 12,131.95
4. Step 4: Simplify right side
   37,091.99x = 675,103,388.89
5. Step 5: Solve for x
   x = 675,103,388.89/37,091.99
6. Step 6: Final answer
   x = 18,200.79