Finding the Fourth Proportional to 11,808.72, 17,700.93 and 5,238

Step by Step Solution

1. Step 1: Write the proportion equation
   11,808.72 : 17,700.93 = 5,238 : x
2. Step 2: Convert to fraction form
   11,808.72/17,700.93 = 5,238/x
3. Step 3: Cross multiply
   11,808.72x = 17,700.93 × 5,238
4. Step 4: Simplify right side
   11,808.72x = 92,717,471.34
5. Step 5: Solve for x
   x = 92,717,471.34/11,808.72
6. Step 6: Final answer
   x = 7,851.61