Finding the Fourth Proportional to 152,977.86, 229,356.88 and 71,879.15

Step by Step Solution

1. Step 1: Write the proportion equation
   152,977.86 : 229,356.88 = 71,879.15 : x
2. Step 2: Convert to fraction form
   152,977.86/229,356.88 = 71,879.15/x
3. Step 3: Cross multiply
   152,977.86x = 229,356.88 × 71,879.15
4. Step 4: Simplify right side
   152,977.86x = 16,485,978,009.66
5. Step 5: Solve for x
   x = 16,485,978,009.66/152,977.86
6. Step 6: Final answer
   x = 107,767.09