Finding the Fourth Proportional to 10,667.10, 15,988.50 and 4,090.44

Step by Step Solution

1. Step 1: Write the proportion equation
   10,667.10 : 15,988.50 = 4,090.44 : x
2. Step 2: Convert to fraction form
   10,667.10/15,988.50 = 4,090.44/x
3. Step 3: Cross multiply
   10,667.10x = 15,988.50 × 4,090.44
4. Step 4: Simplify right side
   10,667.10x = 65,399,999.94
5. Step 5: Solve for x
   x = 65,399,999.94/10,667.10
6. Step 6: Final answer
   x = 6,131.00