Finding the Fourth Proportional to 14,250.42, 19,665.64 and 7,790.19

Step by Step Solution

1. Step 1: Write the proportion equation
   14,250.42 : 19,665.64 = 7,790.19 : x
2. Step 2: Convert to fraction form
   14,250.42/19,665.64 = 7,790.19/x
3. Step 3: Cross multiply
   14,250.42x = 19,665.64 × 7,790.19
4. Step 4: Simplify right side
   14,250.42x = 153,199,072.07
5. Step 5: Solve for x
   x = 153,199,072.07/14,250.42
6. Step 6: Final answer
   x = 10,750.50