Finding the Fourth Proportional to 78,956.30, 108,955.04 and 43,139.18

Step by Step Solution

1. Step 1: Write the proportion equation
   78,956.30 : 108,955.04 = 43,139.18 : x
2. Step 2: Convert to fraction form
   78,956.30/108,955.04 = 43,139.18/x
3. Step 3: Cross multiply
   78,956.30x = 108,955.04 × 43,139.18
4. Step 4: Simplify right side
   78,956.30x = 4,700,231,082.47
5. Step 5: Solve for x
   x = 4,700,231,082.47/78,956.30
6. Step 6: Final answer
   x = 59,529.53