Finding the Fourth Proportional to 10,507.79, 15,764.00 and 3,112.83

Step by Step Solution

1. Step 1: Write the proportion equation
   10,507.79 : 15,764.00 = 3,112.83 : x
2. Step 2: Convert to fraction form
   10,507.79/15,764.00 = 3,112.83/x
3. Step 3: Cross multiply
   10,507.79x = 15,764.00 × 3,112.83
4. Step 4: Simplify right side
   10,507.79x = 49,070,636.56
5. Step 5: Solve for x
   x = 49,070,636.56/10,507.79
6. Step 6: Final answer
   x = 4,669.93