Finding the Fourth Proportional to 9,415.55, 14,100.86 and 5,245.22

Step by Step Solution

1. Step 1: Write the proportion equation
   9,415.55 : 14,100.86 = 5,245.22 : x
2. Step 2: Convert to fraction form
   9,415.55/14,100.86 = 5,245.22/x
3. Step 3: Cross multiply
   9,415.55x = 14,100.86 × 5,245.22
4. Step 4: Simplify right side
   9,415.55x = 73,962,042.38
5. Step 5: Solve for x
   x = 73,962,042.38/9,415.55
6. Step 6: Final answer
   x = 7,855.31