Finding the Fourth Proportional to 12,877.94, 17,772.00 and 7,212.93

Step by Step Solution

1. Step 1: Write the proportion equation
   12,877.94 : 17,772.00 = 7,212.93 : x
2. Step 2: Convert to fraction form
   12,877.94/17,772.00 = 7,212.93/x
3. Step 3: Cross multiply
   12,877.94x = 17,772.00 × 7,212.93
4. Step 4: Simplify right side
   12,877.94x = 128,188,155.90
5. Step 5: Solve for x
   x = 128,188,155.90/12,877.94
6. Step 6: Final answer
   x = 9,954.09