Finding the Fourth Proportional to 78,744.56, 118,118.05 and 43,905.65

Step by Step Solution

1. Step 1: Write the proportion equation
   78,744.56 : 118,118.05 = 43,905.65 : x
2. Step 2: Convert to fraction form
   78,744.56/118,118.05 = 43,905.65/x
3. Step 3: Cross multiply
   78,744.56x = 118,118.05 × 43,905.65
4. Step 4: Simplify right side
   78,744.56x = 5,186,049,061.63
5. Step 5: Solve for x
   x = 5,186,049,061.63/78,744.56
6. Step 6: Final answer
   x = 65,859.14