Finding the Fourth Proportional to 30,111.70, 45,149.31 and 13,468.63

Step by Step Solution

1. Step 1: Write the proportion equation
   30,111.70 : 45,149.31 = 13,468.63 : x
2. Step 2: Convert to fraction form
   30,111.70/45,149.31 = 13,468.63/x
3. Step 3: Cross multiply
   30,111.70x = 45,149.31 × 13,468.63
4. Step 4: Simplify right side
   30,111.70x = 608,099,351.15
5. Step 5: Solve for x
   x = 608,099,351.15/30,111.70
6. Step 6: Final answer
   x = 20,194.79