Finding the Fourth Proportional to 140,773.55, 194,260.28 and 77,109.98

Step by Step Solution

1. Step 1: Write the proportion equation
   140,773.55 : 194,260.28 = 77,109.98 : x
2. Step 2: Convert to fraction form
   140,773.55/194,260.28 = 77,109.98/x
3. Step 3: Cross multiply
   140,773.55x = 194,260.28 × 77,109.98
4. Step 4: Simplify right side
   140,773.55x = 14,979,404,948.74
5. Step 5: Solve for x
   x = 14,979,404,948.74/140,773.55
6. Step 6: Final answer
   x = 106,407.81