Finding the Fourth Proportional to 13,274.42, 19,900.47 and 8,878.46

Step by Step Solution

1. Step 1: Write the proportion equation
   13,274.42 : 19,900.47 = 8,878.46 : x
2. Step 2: Convert to fraction form
   13,274.42/19,900.47 = 8,878.46/x
3. Step 3: Cross multiply
   13,274.42x = 19,900.47 × 8,878.46
4. Step 4: Simplify right side
   13,274.42x = 176,685,526.88
5. Step 5: Solve for x
   x = 176,685,526.88/13,274.42
6. Step 6: Final answer
   x = 13,310.23