Finding the Fourth Proportional to 10,892.51, 15,031.47 and 6,112.56

Step by Step Solution

1. Step 1: Write the proportion equation
   10,892.51 : 15,031.47 = 6,112.56 : x
2. Step 2: Convert to fraction form
   10,892.51/15,031.47 = 6,112.56/x
3. Step 3: Cross multiply
   10,892.51x = 15,031.47 × 6,112.56
4. Step 4: Simplify right side
   10,892.51x = 91,880,841.55
5. Step 5: Solve for x
   x = 91,880,841.55/10,892.51
6. Step 6: Final answer
   x = 8,435.23