Finding the Fourth Proportional to 145,927.72, 218,879.89 and 64,899.83

Step by Step Solution

1. Step 1: Write the proportion equation
   145,927.72 : 218,879.89 = 64,899.83 : x
2. Step 2: Convert to fraction form
   145,927.72/218,879.89 = 64,899.83/x
3. Step 3: Cross multiply
   145,927.72x = 218,879.89 × 64,899.83
4. Step 4: Simplify right side
   145,927.72x = 14,205,267,651.42
5. Step 5: Solve for x
   x = 14,205,267,651.42/145,927.72
6. Step 6: Final answer
   x = 97,344.55