Finding the Fourth Proportional to 140,877.63, 194,409.72 and 77,216.49

Step by Step Solution

1. Step 1: Write the proportion equation
   140,877.63 : 194,409.72 = 77,216.49 : x
2. Step 2: Convert to fraction form
   140,877.63/194,409.72 = 77,216.49/x
3. Step 3: Cross multiply
   140,877.63x = 194,409.72 × 77,216.49
4. Step 4: Simplify right side
   140,877.63x = 15,011,636,200.28
5. Step 5: Solve for x
   x = 15,011,636,200.28/140,877.63
6. Step 6: Final answer
   x = 106,557.98