Finding the Fourth Proportional to 140,061.34, 193,291.49 and 78,826.66

Step by Step Solution

1. Step 1: Write the proportion equation
   140,061.34 : 193,291.49 = 78,826.66 : x
2. Step 2: Convert to fraction form
   140,061.34/193,291.49 = 78,826.66/x
3. Step 3: Cross multiply
   140,061.34x = 193,291.49 × 78,826.66
4. Step 4: Simplify right side
   140,061.34x = 15,236,522,563.12
5. Step 5: Solve for x
   x = 15,236,522,563.12/140,061.34
6. Step 6: Final answer
   x = 108,784.64