Finding the Fourth Proportional to 140,080.34, 194,128.68 and 137,422.10

Step by Step Solution

1. Step 1: Write the proportion equation
   140,080.34 : 194,128.68 = 137,422.10 : x
2. Step 2: Convert to fraction form
   140,080.34/194,128.68 = 137,422.10/x
3. Step 3: Cross multiply
   140,080.34x = 194,128.68 × 137,422.10
4. Step 4: Simplify right side
   140,080.34x = 26,677,570,875.83
5. Step 5: Solve for x
   x = 26,677,570,875.83/140,080.34
6. Step 6: Final answer
   x = 190,444.79