Finding the Fourth Proportional to 140,079.34, 194,127.29 and 137,421.10

Step by Step Solution

1. Step 1: Write the proportion equation
   140,079.34 : 194,127.29 = 137,421.10 : x
2. Step 2: Convert to fraction form
   140,079.34/194,127.29 = 137,421.10/x
3. Step 3: Cross multiply
   140,079.34x = 194,127.29 × 137,421.10
4. Step 4: Simplify right side
   140,079.34x = 26,677,185,731.82
5. Step 5: Solve for x
   x = 26,677,185,731.82/140,079.34
6. Step 6: Final answer
   x = 190,443.40