Finding the Fourth Proportional to 12,117.42, 16,715.20 and 7,633.46

Step by Step Solution

1. Step 1: Write the proportion equation
   12,117.42 : 16,715.20 = 7,633.46 : x
2. Step 2: Convert to fraction form
   12,117.42/16,715.20 = 7,633.46/x
3. Step 3: Cross multiply
   12,117.42x = 16,715.20 × 7,633.46
4. Step 4: Simplify right side
   12,117.42x = 127,594,810.59
5. Step 5: Solve for x
   x = 127,594,810.59/12,117.42
6. Step 6: Final answer
   x = 10,529.87