Finding the Fourth Proportional to 14,290.16, 19,719.96 and 7,917.02

Step by Step Solution

1. Step 1: Write the proportion equation
   14,290.16 : 19,719.96 = 7,917.02 : x
2. Step 2: Convert to fraction form
   14,290.16/19,719.96 = 7,917.02/x
3. Step 3: Cross multiply
   14,290.16x = 19,719.96 × 7,917.02
4. Step 4: Simplify right side
   14,290.16x = 156,123,317.72
5. Step 5: Solve for x
   x = 156,123,317.72/14,290.16
6. Step 6: Final answer
   x = 10,925.23