Finding the Fourth Proportional to 140,663.45, 194,115.89 and 77,005.35

Step by Step Solution

1. Step 1: Write the proportion equation
   140,663.45 : 194,115.89 = 77,005.35 : x
2. Step 2: Convert to fraction form
   140,663.45/194,115.89 = 77,005.35/x
3. Step 3: Cross multiply
   140,663.45x = 194,115.89 × 77,005.35
4. Step 4: Simplify right side
   140,663.45x = 14,947,962,242.52
5. Step 5: Solve for x
   x = 14,947,962,242.52/140,663.45
6. Step 6: Final answer
   x = 106,267.56