Finding the Fourth Proportional to 140,693.25, 194,161.59 and 77,031.57

Step by Step Solution

1. Step 1: Write the proportion equation
   140,693.25 : 194,161.59 = 77,031.57 : x
2. Step 2: Convert to fraction form
   140,693.25/194,161.59 = 77,031.57/x
3. Step 3: Cross multiply
   140,693.25x = 194,161.59 × 77,031.57
4. Step 4: Simplify right side
   140,693.25x = 14,956,572,111.40
5. Step 5: Solve for x
   x = 14,956,572,111.40/140,693.25
6. Step 6: Final answer
   x = 106,306.25