Finding the Fourth Proportional to 10,356.59, 14,300.51 and 8,442.70

Step by Step Solution

1. Step 1: Write the proportion equation
   10,356.59 : 14,300.51 = 8,442.70 : x
2. Step 2: Convert to fraction form
   10,356.59/14,300.51 = 8,442.70/x
3. Step 3: Cross multiply
   10,356.59x = 14,300.51 × 8,442.70
4. Step 4: Simplify right side
   10,356.59x = 120,734,915.78
5. Step 5: Solve for x
   x = 120,734,915.78/10,356.59
6. Step 6: Final answer
   x = 11,657.79