Finding the Fourth Proportional to 10,526.54, 15,789.56 and 3,131.06

Step by Step Solution

1. Step 1: Write the proportion equation
   10,526.54 : 15,789.56 = 3,131.06 : x
2. Step 2: Convert to fraction form
   10,526.54/15,789.56 = 3,131.06/x
3. Step 3: Cross multiply
   10,526.54x = 15,789.56 × 3,131.06
4. Step 4: Simplify right side
   10,526.54x = 49,438,083.55
5. Step 5: Solve for x
   x = 49,438,083.55/10,526.54
6. Step 6: Final answer
   x = 4,696.52