Finding the Fourth Proportional to 13,123.16, 18,110.02 and 8,410.18

Step by Step Solution

1. Step 1: Write the proportion equation
   13,123.16 : 18,110.02 = 8,410.18 : x
2. Step 2: Convert to fraction form
   13,123.16/18,110.02 = 8,410.18/x
3. Step 3: Cross multiply
   13,123.16x = 18,110.02 × 8,410.18
4. Step 4: Simplify right side
   13,123.16x = 152,308,528.00
5. Step 5: Solve for x
   x = 152,308,528.00/13,123.16
6. Step 6: Final answer
   x = 11,606.09