Finding the Fourth Proportional to 10,507.47, 15,764.25 and 3,112.07

Step by Step Solution

1. Step 1: Write the proportion equation
   10,507.47 : 15,764.25 = 3,112.07 : x
2. Step 2: Convert to fraction form
   10,507.47/15,764.25 = 3,112.07/x
3. Step 3: Cross multiply
   10,507.47x = 15,764.25 × 3,112.07
4. Step 4: Simplify right side
   10,507.47x = 49,059,444.76
5. Step 5: Solve for x
   x = 49,059,444.76/10,507.47
6. Step 6: Final answer
   x = 4,669.01