Finding the Fourth Proportional to 140,477.86, 193,855.12 and 86,050.72

Step by Step Solution

1. Step 1: Write the proportion equation
   140,477.86 : 193,855.12 = 86,050.72 : x
2. Step 2: Convert to fraction form
   140,477.86/193,855.12 = 86,050.72/x
3. Step 3: Cross multiply
   140,477.86x = 193,855.12 × 86,050.72
4. Step 4: Simplify right side
   140,477.86x = 16,681,372,678.88
5. Step 5: Solve for x
   x = 16,681,372,678.88/140,477.86
6. Step 6: Final answer
   x = 118,747.34