Finding the Fourth Proportional to 10,429.15, 14,394.22 and 8,155.98

Step by Step Solution

1. Step 1: Write the proportion equation
   10,429.15 : 14,394.22 = 8,155.98 : x
2. Step 2: Convert to fraction form
   10,429.15/14,394.22 = 8,155.98/x
3. Step 3: Cross multiply
   10,429.15x = 14,394.22 × 8,155.98
4. Step 4: Simplify right side
   10,429.15x = 117,399,026.81
5. Step 5: Solve for x
   x = 117,399,026.81/10,429.15
6. Step 6: Final answer
   x = 11,256.82