Finding the Fourth Proportional to 78,921.72, 108,908.01 and 43,105.14

Step by Step Solution

1. Step 1: Write the proportion equation
   78,921.72 : 108,908.01 = 43,105.14 : x
2. Step 2: Convert to fraction form
   78,921.72/108,908.01 = 43,105.14/x
3. Step 3: Cross multiply
   78,921.72x = 108,908.01 × 43,105.14
4. Step 4: Simplify right side
   78,921.72x = 4,694,495,018.17
5. Step 5: Solve for x
   x = 4,694,495,018.17/78,921.72
6. Step 6: Final answer
   x = 59,482.93