Finding the Fourth Proportional to 10,067.86, 13,892.95 and 5,591.38

Step by Step Solution

1. Step 1: Write the proportion equation
   10,067.86 : 13,892.95 = 5,591.38 : x
2. Step 2: Convert to fraction form
   10,067.86/13,892.95 = 5,591.38/x
3. Step 3: Cross multiply
   10,067.86x = 13,892.95 × 5,591.38
4. Step 4: Simplify right side
   10,067.86x = 77,680,762.77
5. Step 5: Solve for x
   x = 77,680,762.77/10,067.86
6. Step 6: Final answer
   x = 7,715.72