Finding the Fourth Proportional to 22,719.78, 34,085.06 and 7,137.41

Step by Step Solution

1. Step 1: Write the proportion equation
   22,719.78 : 34,085.06 = 7,137.41 : x
2. Step 2: Convert to fraction form
   22,719.78/34,085.06 = 7,137.41/x
3. Step 3: Cross multiply
   22,719.78x = 34,085.06 × 7,137.41
4. Step 4: Simplify right side
   22,719.78x = 243,278,841.98
5. Step 5: Solve for x
   x = 243,278,841.98/22,719.78
6. Step 6: Final answer
   x = 10,707.80