Finding the Fourth Proportional to 78,921.99, 108,908.29 and 43,105.08

Step by Step Solution

1. Step 1: Write the proportion equation
   78,921.99 : 108,908.29 = 43,105.08 : x
2. Step 2: Convert to fraction form
   78,921.99/108,908.29 = 43,105.08/x
3. Step 3: Cross multiply
   78,921.99x = 108,908.29 × 43,105.08
4. Step 4: Simplify right side
   78,921.99x = 4,694,500,364.53
5. Step 5: Solve for x
   x = 4,694,500,364.53/78,921.99
6. Step 6: Final answer
   x = 59,482.79