Finding the Fourth Proportional to 145,225.15, 217,922.98 and 60,978.83

Step by Step Solution

1. Step 1: Write the proportion equation
   145,225.15 : 217,922.98 = 60,978.83 : x
2. Step 2: Convert to fraction form
   145,225.15/217,922.98 = 60,978.83/x
3. Step 3: Cross multiply
   145,225.15x = 217,922.98 × 60,978.83
4. Step 4: Simplify right side
   145,225.15x = 13,288,688,350.51
5. Step 5: Solve for x
   x = 13,288,688,350.51/145,225.15
6. Step 6: Final answer
   x = 91,504.05