Finding the Fourth Proportional to 10,453.86, 14,364.95 and 8,354.34

Step by Step Solution

1. Step 1: Write the proportion equation
   10,453.86 : 14,364.95 = 8,354.34 : x
2. Step 2: Convert to fraction form
   10,453.86/14,364.95 = 8,354.34/x
3. Step 3: Cross multiply
   10,453.86x = 14,364.95 × 8,354.34
4. Step 4: Simplify right side
   10,453.86x = 120,009,634.61
5. Step 5: Solve for x
   x = 120,009,634.61/10,453.86
6. Step 6: Final answer
   x = 11,479.94