Finding the Fourth Proportional to 8,713.31, 13,068.59 and 7,241.98

Step by Step Solution

1. Step 1: Write the proportion equation
   8,713.31 : 13,068.59 = 7,241.98 : x
2. Step 2: Convert to fraction form
   8,713.31/13,068.59 = 7,241.98/x
3. Step 3: Cross multiply
   8,713.31x = 13,068.59 × 7,241.98
4. Step 4: Simplify right side
   8,713.31x = 94,642,416.63
5. Step 5: Solve for x
   x = 94,642,416.63/8,713.31
6. Step 6: Final answer
   x = 10,861.82