Finding the Fourth Proportional to 12,955.98, 17,878.82 and 7,290.84

Step by Step Solution

1. Step 1: Write the proportion equation
   12,955.98 : 17,878.82 = 7,290.84 : x
2. Step 2: Convert to fraction form
   12,955.98/17,878.82 = 7,290.84/x
3. Step 3: Cross multiply
   12,955.98x = 17,878.82 × 7,290.84
4. Step 4: Simplify right side
   12,955.98x = 130,351,579.55
5. Step 5: Solve for x
   x = 130,351,579.55/12,955.98
6. Step 6: Final answer
   x = 10,061.11