Finding the Fourth Proportional to 78,981.12, 108,994.17 and 43,171.56

Step by Step Solution

1. Step 1: Write the proportion equation
   78,981.12 : 108,994.17 = 43,171.56 : x
2. Step 2: Convert to fraction form
   78,981.12/108,994.17 = 43,171.56/x
3. Step 3: Cross multiply
   78,981.12x = 108,994.17 × 43,171.56
4. Step 4: Simplify right side
   78,981.12x = 4,705,448,349.81
5. Step 5: Solve for x
   x = 4,705,448,349.81/78,981.12
6. Step 6: Final answer
   x = 59,576.88