Finding the Fourth Proportional to 36,808.71, 55,216.58 and 13,429.59

Step by Step Solution

1. Step 1: Write the proportion equation
   36,808.71 : 55,216.58 = 13,429.59 : x
2. Step 2: Convert to fraction form
   36,808.71/55,216.58 = 13,429.59/x
3. Step 3: Cross multiply
   36,808.71x = 55,216.58 × 13,429.59
4. Step 4: Simplify right side
   36,808.71x = 741,536,030.60
5. Step 5: Solve for x
   x = 741,536,030.60/36,808.71
6. Step 6: Final answer
   x = 20,145.67