Finding the Fourth Proportional to 36,931.82, 55,426.80 and 13,564.94

Step by Step Solution

1. Step 1: Write the proportion equation
   36,931.82 : 55,426.80 = 13,564.94 : x
2. Step 2: Convert to fraction form
   36,931.82/55,426.80 = 13,564.94/x
3. Step 3: Cross multiply
   36,931.82x = 55,426.80 × 13,564.94
4. Step 4: Simplify right side
   36,931.82x = 751,861,216.39
5. Step 5: Solve for x
   x = 751,861,216.39/36,931.82
6. Step 6: Final answer
   x = 20,358.09