Finding the Fourth Proportional to 10,585.38, 15,881.62 and 7,426.11

Step by Step Solution

1. Step 1: Write the proportion equation
   10,585.38 : 15,881.62 = 7,426.11 : x
2. Step 2: Convert to fraction form
   10,585.38/15,881.62 = 7,426.11/x
3. Step 3: Cross multiply
   10,585.38x = 15,881.62 × 7,426.11
4. Step 4: Simplify right side
   10,585.38x = 117,938,577.69
5. Step 5: Solve for x
   x = 117,938,577.69/10,585.38
6. Step 6: Final answer
   x = 11,141.65