Finding the Fourth Proportional to 8,631.82, 12,938.82 and 4,727.98

Step by Step Solution

1. Step 1: Write the proportion equation
   8,631.82 : 12,938.82 = 4,727.98 : x
2. Step 2: Convert to fraction form
   8,631.82/12,938.82 = 4,727.98/x
3. Step 3: Cross multiply
   8,631.82x = 12,938.82 × 4,727.98
4. Step 4: Simplify right side
   8,631.82x = 61,174,482.18
5. Step 5: Solve for x
   x = 61,174,482.18/8,631.82
6. Step 6: Final answer
   x = 7,087.09