Finding the Fourth Proportional to 140,314.50, 193,647.33 and 76,661.88

Step by Step Solution

1. Step 1: Write the proportion equation
   140,314.50 : 193,647.33 = 76,661.88 : x
2. Step 2: Convert to fraction form
   140,314.50/193,647.33 = 76,661.88/x
3. Step 3: Cross multiply
   140,314.50x = 193,647.33 × 76,661.88
4. Step 4: Simplify right side
   140,314.50x = 14,845,368,374.78
5. Step 5: Solve for x
   x = 14,845,368,374.78/140,314.50
6. Step 6: Final answer
   x = 105,800.67