Finding the Fourth Proportional to 140,297, 193,615.62 and 80,681

Step by Step Solution

1. Step 1: Write the proportion equation
   140,297 : 193,615.62 = 80,681 : x
2. Step 2: Convert to fraction form
   140,297/193,615.62 = 80,681/x
3. Step 3: Cross multiply
   140,297x = 193,615.62 × 80,681
4. Step 4: Simplify right side
   140,297x = 15,621,101,837.22
5. Step 5: Solve for x
   x = 15,621,101,837.22/140,297
6. Step 6: Final answer
   x = 111,343.09