Finding the Fourth Proportional to 19,591.42, 27,036.22 and 10,638.98

Step by Step Solution

1. Step 1: Write the proportion equation
   19,591.42 : 27,036.22 = 10,638.98 : x
2. Step 2: Convert to fraction form
   19,591.42/27,036.22 = 10,638.98/x
3. Step 3: Cross multiply
   19,591.42x = 27,036.22 × 10,638.98
4. Step 4: Simplify right side
   19,591.42x = 287,637,803.86
5. Step 5: Solve for x
   x = 287,637,803.86/19,591.42
6. Step 6: Final answer
   x = 14,681.83