Finding the Fourth Proportional to 12,810.84, 17,674.88 and 10,113.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,810.84 : 17,674.88 = 10,113.56 : x
2. Step 2: Convert to fraction form
   12,810.84/17,674.88 = 10,113.56/x
3. Step 3: Cross multiply
   12,810.84x = 17,674.88 × 10,113.56
4. Step 4: Simplify right side
   12,810.84x = 178,755,959.37
5. Step 5: Solve for x
   x = 178,755,959.37/12,810.84
6. Step 6: Final answer
   x = 13,953.49