Finding the Fourth Proportional to 245,656.86, 367,894.79 and 140,155.98

Step by Step Solution

1. Step 1: Write the proportion equation
   245,656.86 : 367,894.79 = 140,155.98 : x
2. Step 2: Convert to fraction form
   245,656.86/367,894.79 = 140,155.98/x
3. Step 3: Cross multiply
   245,656.86x = 367,894.79 × 140,155.98
4. Step 4: Simplify right side
   245,656.86x = 51,562,654,128.56
5. Step 5: Solve for x
   x = 51,562,654,128.56/245,656.86
6. Step 6: Final answer
   x = 209,897.07