Finding the Fourth Proportional to 13,034.79, 17,985.24 and 7,731.32

Step by Step Solution

1. Step 1: Write the proportion equation
   13,034.79 : 17,985.24 = 7,731.32 : x
2. Step 2: Convert to fraction form
   13,034.79/17,985.24 = 7,731.32/x
3. Step 3: Cross multiply
   13,034.79x = 17,985.24 × 7,731.32
4. Step 4: Simplify right side
   13,034.79x = 139,049,555.79
5. Step 5: Solve for x
   x = 139,049,555.79/13,034.79
6. Step 6: Final answer
   x = 10,667.57