Finding the Fourth Proportional to 78,828.95, 108,784.34 and 43,019.71

Step by Step Solution

1. Step 1: Write the proportion equation
   78,828.95 : 108,784.34 = 43,019.71 : x
2. Step 2: Convert to fraction form
   78,828.95/108,784.34 = 43,019.71/x
3. Step 3: Cross multiply
   78,828.95x = 108,784.34 × 43,019.71
4. Step 4: Simplify right side
   78,828.95x = 4,679,870,759.34
5. Step 5: Solve for x
   x = 4,679,870,759.34/78,828.95
6. Step 6: Final answer
   x = 59,367.41