Finding the Fourth Proportional to 30,659.91, 46,002.83 and 13,137.99

Step by Step Solution

1. Step 1: Write the proportion equation
   30,659.91 : 46,002.83 = 13,137.99 : x
2. Step 2: Convert to fraction form
   30,659.91/46,002.83 = 13,137.99/x
3. Step 3: Cross multiply
   30,659.91x = 46,002.83 × 13,137.99
4. Step 4: Simplify right side
   30,659.91x = 604,384,654.82
5. Step 5: Solve for x
   x = 604,384,654.82/30,659.91
6. Step 6: Final answer
   x = 19,712.54