Finding the Fourth Proportional to 12,796.86, 19,190.22 and 6,131.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,796.86 : 19,190.22 = 6,131.50 : x
2. Step 2: Convert to fraction form
   12,796.86/19,190.22 = 6,131.50/x
3. Step 3: Cross multiply
   12,796.86x = 19,190.22 × 6,131.50
4. Step 4: Simplify right side
   12,796.86x = 117,664,833.93
5. Step 5: Solve for x
   x = 117,664,833.93/12,796.86
6. Step 6: Final answer
   x = 9,194.82