Finding the Fourth Proportional to 9,261.86, 12,781.38 and 5,012.94

Step by Step Solution

1. Step 1: Write the proportion equation
   9,261.86 : 12,781.38 = 5,012.94 : x
2. Step 2: Convert to fraction form
   9,261.86/12,781.38 = 5,012.94/x
3. Step 3: Cross multiply
   9,261.86x = 12,781.38 × 5,012.94
4. Step 4: Simplify right side
   9,261.86x = 64,072,257.69
5. Step 5: Solve for x
   x = 64,072,257.69/9,261.86
6. Step 6: Final answer
   x = 6,917.86