Finding the Fourth Proportional to 13,884.76, 19,156.22 and 7,912.12

Step by Step Solution

1. Step 1: Write the proportion equation
   13,884.76 : 19,156.22 = 7,912.12 : x
2. Step 2: Convert to fraction form
   13,884.76/19,156.22 = 7,912.12/x
3. Step 3: Cross multiply
   13,884.76x = 19,156.22 × 7,912.12
4. Step 4: Simplify right side
   13,884.76x = 151,566,311.39
5. Step 5: Solve for x
   x = 151,566,311.39/13,884.76
6. Step 6: Final answer
   x = 10,916.02