Finding the Fourth Proportional to 10,100.68, 13,938.01 and 7,449.55

Step by Step Solution

1. Step 1: Write the proportion equation
   10,100.68 : 13,938.01 = 7,449.55 : x
2. Step 2: Convert to fraction form
   10,100.68/13,938.01 = 7,449.55/x
3. Step 3: Cross multiply
   10,100.68x = 13,938.01 × 7,449.55
4. Step 4: Simplify right side
   10,100.68x = 103,831,902.40
5. Step 5: Solve for x
   x = 103,831,902.40/10,100.68
6. Step 6: Final answer
   x = 10,279.69