Finding the Fourth Proportional to 12,988.82, 19,482.15 and 5,198.06

Step by Step Solution

1. Step 1: Write the proportion equation
   12,988.82 : 19,482.15 = 5,198.06 : x
2. Step 2: Convert to fraction form
   12,988.82/19,482.15 = 5,198.06/x
3. Step 3: Cross multiply
   12,988.82x = 19,482.15 × 5,198.06
4. Step 4: Simplify right side
   12,988.82x = 101,269,384.63
5. Step 5: Solve for x
   x = 101,269,384.63/12,988.82
6. Step 6: Final answer
   x = 7,796.66