Finding the Fourth Proportional to 140,259.25, 193,558.48 and 76,597.05

Step by Step Solution

1. Step 1: Write the proportion equation
   140,259.25 : 193,558.48 = 76,597.05 : x
2. Step 2: Convert to fraction form
   140,259.25/193,558.48 = 76,597.05/x
3. Step 3: Cross multiply
   140,259.25x = 193,558.48 × 76,597.05
4. Step 4: Simplify right side
   140,259.25x = 14,826,008,086.59
5. Step 5: Solve for x
   x = 14,826,008,086.59/140,259.25
6. Step 6: Final answer
   x = 105,704.31