Finding the Fourth Proportional to 30,081.58, 45,163.78 and 15,300.50

Step by Step Solution

1. Step 1: Write the proportion equation
   30,081.58 : 45,163.78 = 15,300.50 : x
2. Step 2: Convert to fraction form
   30,081.58/45,163.78 = 15,300.50/x
3. Step 3: Cross multiply
   30,081.58x = 45,163.78 × 15,300.50
4. Step 4: Simplify right side
   30,081.58x = 691,028,151.82
5. Step 5: Solve for x
   x = 691,028,151.82/30,081.58
6. Step 6: Final answer
   x = 22,971.81