Finding the Fourth Proportional to 11,908.76, 16,434.58 and 7,192.12

Step by Step Solution

1. Step 1: Write the proportion equation
   11,908.76 : 16,434.58 = 7,192.12 : x
2. Step 2: Convert to fraction form
   11,908.76/16,434.58 = 7,192.12/x
3. Step 3: Cross multiply
   11,908.76x = 16,434.58 × 7,192.12
4. Step 4: Simplify right side
   11,908.76x = 118,199,471.51
5. Step 5: Solve for x
   x = 118,199,471.51/11,908.76
6. Step 6: Final answer
   x = 9,925.42