Finding the Fourth Proportional to 14,072.50, 19,420.05 and 7,785.82

Step by Step Solution

1. Step 1: Write the proportion equation
   14,072.50 : 19,420.05 = 7,785.82 : x
2. Step 2: Convert to fraction form
   14,072.50/19,420.05 = 7,785.82/x
3. Step 3: Cross multiply
   14,072.50x = 19,420.05 × 7,785.82
4. Step 4: Simplify right side
   14,072.50x = 151,201,013.69
5. Step 5: Solve for x
   x = 151,201,013.69/14,072.50
6. Step 6: Final answer
   x = 10,744.43