Finding the Fourth Proportional to 9,131.84, 12,601.94 and 5,153.79

Step by Step Solution

1. Step 1: Write the proportion equation
   9,131.84 : 12,601.94 = 5,153.79 : x
2. Step 2: Convert to fraction form
   9,131.84/12,601.94 = 5,153.79/x
3. Step 3: Cross multiply
   9,131.84x = 12,601.94 × 5,153.79
4. Step 4: Simplify right side
   9,131.84x = 64,947,726.58
5. Step 5: Solve for x
   x = 64,947,726.58/9,131.84
6. Step 6: Final answer
   x = 7,112.23