Finding the Fourth Proportional to 19,307.83, 26,642.55 and 10,810.42

Step by Step Solution

1. Step 1: Write the proportion equation
   19,307.83 : 26,642.55 = 10,810.42 : x
2. Step 2: Convert to fraction form
   19,307.83/26,642.55 = 10,810.42/x
3. Step 3: Cross multiply
   19,307.83x = 26,642.55 × 10,810.42
4. Step 4: Simplify right side
   19,307.83x = 288,017,155.37
5. Step 5: Solve for x
   x = 288,017,155.37/19,307.83
6. Step 6: Final answer
   x = 14,917.12