Finding the Fourth Proportional to 12,608.19, 17,387.82 and 10,090.53

Step by Step Solution

1. Step 1: Write the proportion equation
   12,608.19 : 17,387.82 = 10,090.53 : x
2. Step 2: Convert to fraction form
   12,608.19/17,387.82 = 10,090.53/x
3. Step 3: Cross multiply
   12,608.19x = 17,387.82 × 10,090.53
4. Step 4: Simplify right side
   12,608.19x = 175,452,319.34
5. Step 5: Solve for x
   x = 175,452,319.34/12,608.19
6. Step 6: Final answer
   x = 13,915.74