Finding the Fourth Proportional to 14,072.94, 19,419.48 and 7,785.18

Step by Step Solution

1. Step 1: Write the proportion equation
   14,072.94 : 19,419.48 = 7,785.18 : x
2. Step 2: Convert to fraction form
   14,072.94/19,419.48 = 7,785.18/x
3. Step 3: Cross multiply
   14,072.94x = 19,419.48 × 7,785.18
4. Step 4: Simplify right side
   14,072.94x = 151,184,147.31
5. Step 5: Solve for x
   x = 151,184,147.31/14,072.94
6. Step 6: Final answer
   x = 10,742.90