Finding the Fourth Proportional to 13,127.00, 18,114.71 and 7,158.51

Step by Step Solution

1. Step 1: Write the proportion equation
   13,127.00 : 18,114.71 = 7,158.51 : x
2. Step 2: Convert to fraction form
   13,127.00/18,114.71 = 7,158.51/x
3. Step 3: Cross multiply
   13,127.00x = 18,114.71 × 7,158.51
4. Step 4: Simplify right side
   13,127.00x = 129,674,296.89
5. Step 5: Solve for x
   x = 129,674,296.89/13,127.00
6. Step 6: Final answer
   x = 9,878.44