Finding the Fourth Proportional to 8,111.16, 12,156.14 and 4,159.07

Step by Step Solution

1. Step 1: Write the proportion equation
   8,111.16 : 12,156.14 = 4,159.07 : x
2. Step 2: Convert to fraction form
   8,111.16/12,156.14 = 4,159.07/x
3. Step 3: Cross multiply
   8,111.16x = 12,156.14 × 4,159.07
4. Step 4: Simplify right side
   8,111.16x = 50,558,155.61
5. Step 5: Solve for x
   x = 50,558,155.61/8,111.16
6. Step 6: Final answer
   x = 6,233.16