Finding the Fourth Proportional to 11,670.51, 16,100.72 and 7,186.49

Step by Step Solution

1. Step 1: Write the proportion equation
   11,670.51 : 16,100.72 = 7,186.49 : x
2. Step 2: Convert to fraction form
   11,670.51/16,100.72 = 7,186.49/x
3. Step 3: Cross multiply
   11,670.51x = 16,100.72 × 7,186.49
4. Step 4: Simplify right side
   11,670.51x = 115,707,674.59
5. Step 5: Solve for x
   x = 115,707,674.59/11,670.51
6. Step 6: Final answer
   x = 9,914.53