Finding the Fourth Proportional to 10,276.30, 14,160.37 and 7,090.57

Step by Step Solution

1. Step 1: Write the proportion equation
   10,276.30 : 14,160.37 = 7,090.57 : x
2. Step 2: Convert to fraction form
   10,276.30/14,160.37 = 7,090.57/x
3. Step 3: Cross multiply
   10,276.30x = 14,160.37 × 7,090.57
4. Step 4: Simplify right side
   10,276.30x = 100,405,094.71
5. Step 5: Solve for x
   x = 100,405,094.71/10,276.30
6. Step 6: Final answer
   x = 9,770.55