Finding the Fourth Proportional to 78,964.63, 108,972.63 and 43,156.15

Step by Step Solution

1. Step 1: Write the proportion equation
   78,964.63 : 108,972.63 = 43,156.15 : x
2. Step 2: Convert to fraction form
   78,964.63/108,972.63 = 43,156.15/x
3. Step 3: Cross multiply
   78,964.63x = 108,972.63 × 43,156.15
4. Step 4: Simplify right side
   78,964.63x = 4,702,839,166.17
5. Step 5: Solve for x
   x = 4,702,839,166.17/78,964.63
6. Step 6: Final answer
   x = 59,556.27