Finding the Fourth Proportional to 78,819.84, 108,770.88 and 43,009.12

Step by Step Solution

1. Step 1: Write the proportion equation
   78,819.84 : 108,770.88 = 43,009.12 : x
2. Step 2: Convert to fraction form
   78,819.84/108,770.88 = 43,009.12/x
3. Step 3: Cross multiply
   78,819.84x = 108,770.88 × 43,009.12
4. Step 4: Simplify right side
   78,819.84x = 4,678,139,830.43
5. Step 5: Solve for x
   x = 4,678,139,830.43/78,819.84
6. Step 6: Final answer
   x = 59,352.31