Finding the Fourth Proportional to 13,090.78, 19,636.29 and 3,731.02

Step by Step Solution

1. Step 1: Write the proportion equation
   13,090.78 : 19,636.29 = 3,731.02 : x
2. Step 2: Convert to fraction form
   13,090.78/19,636.29 = 3,731.02/x
3. Step 3: Cross multiply
   13,090.78x = 19,636.29 × 3,731.02
4. Step 4: Simplify right side
   13,090.78x = 73,263,390.72
5. Step 5: Solve for x
   x = 73,263,390.72/13,090.78
6. Step 6: Final answer
   x = 5,596.56