Finding the Fourth Proportional to 12,061.23, 18,091.71 and 4,268.22

Step by Step Solution

1. Step 1: Write the proportion equation
   12,061.23 : 18,091.71 = 4,268.22 : x
2. Step 2: Convert to fraction form
   12,061.23/18,091.71 = 4,268.22/x
3. Step 3: Cross multiply
   12,061.23x = 18,091.71 × 4,268.22
4. Step 4: Simplify right side
   12,061.23x = 77,219,398.46
5. Step 5: Solve for x
   x = 77,219,398.46/12,061.23
6. Step 6: Final answer
   x = 6,402.28