Finding the Fourth Proportional to 25,699.28, 35,328.69 and 22,100.99

Step by Step Solution

1. Step 1: Write the proportion equation
   25,699.28 : 35,328.69 = 22,100.99 : x
2. Step 2: Convert to fraction form
   25,699.28/35,328.69 = 22,100.99/x
3. Step 3: Cross multiply
   25,699.28x = 35,328.69 × 22,100.99
4. Step 4: Simplify right side
   25,699.28x = 780,798,847.76
5. Step 5: Solve for x
   x = 780,798,847.76/25,699.28
6. Step 6: Final answer
   x = 30,382.14