Finding the Fourth Proportional to 140,081.34, 193,305.51 and 76,415.34

Step by Step Solution

1. Step 1: Write the proportion equation
   140,081.34 : 193,305.51 = 76,415.34 : x
2. Step 2: Convert to fraction form
   140,081.34/193,305.51 = 76,415.34/x
3. Step 3: Cross multiply
   140,081.34x = 193,305.51 × 76,415.34
4. Step 4: Simplify right side
   140,081.34x = 14,771,506,270.52
5. Step 5: Solve for x
   x = 14,771,506,270.52/140,081.34
6. Step 6: Final answer
   x = 105,449.49