Finding the Fourth Proportional to 23,499.91, 35,180.61 and 20,583.91

Step by Step Solution

1. Step 1: Write the proportion equation
   23,499.91 : 35,180.61 = 20,583.91 : x
2. Step 2: Convert to fraction form
   23,499.91/35,180.61 = 20,583.91/x
3. Step 3: Cross multiply
   23,499.91x = 35,180.61 × 20,583.91
4. Step 4: Simplify right side
   23,499.91x = 724,154,509.99
5. Step 5: Solve for x
   x = 724,154,509.99/23,499.91
6. Step 6: Final answer
   x = 30,815.20