Finding the Fourth Proportional to 78,972.34, 108,978.87 and 43,162.06

Step by Step Solution

1. Step 1: Write the proportion equation
   78,972.34 : 108,978.87 = 43,162.06 : x
2. Step 2: Convert to fraction form
   78,972.34/108,978.87 = 43,162.06/x
3. Step 3: Cross multiply
   78,972.34x = 108,978.87 × 43,162.06
4. Step 4: Simplify right side
   78,972.34x = 4,703,752,525.67
5. Step 5: Solve for x
   x = 4,703,752,525.67/78,972.34
6. Step 6: Final answer
   x = 59,562.03