Finding the Fourth Proportional to 22,860, 34,287.58 and 7,276.42

Step by Step Solution

1. Step 1: Write the proportion equation
   22,860 : 34,287.58 = 7,276.42 : x
2. Step 2: Convert to fraction form
   22,860/34,287.58 = 7,276.42/x
3. Step 3: Cross multiply
   22,860x = 34,287.58 × 7,276.42
4. Step 4: Simplify right side
   22,860x = 249,490,832.86
5. Step 5: Solve for x
   x = 249,490,832.86/22,860
6. Step 6: Final answer
   x = 10,913.86