Finding the Fourth Proportional to 9,109.98, 13,666.89 and 2,953.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,109.98 : 13,666.89 = 2,953.50 : x
2. Step 2: Convert to fraction form
   9,109.98/13,666.89 = 2,953.50/x
3. Step 3: Cross multiply
   9,109.98x = 13,666.89 × 2,953.50
4. Step 4: Simplify right side
   9,109.98x = 40,365,159.62
5. Step 5: Solve for x
   x = 40,365,159.62/9,109.98
6. Step 6: Final answer
   x = 4,430.87