Finding the Fourth Proportional to 78,675, 118,000.23 and 43,153.79

Step by Step Solution

1. Step 1: Write the proportion equation
   78,675 : 118,000.23 = 43,153.79 : x
2. Step 2: Convert to fraction form
   78,675/118,000.23 = 43,153.79/x
3. Step 3: Cross multiply
   78,675x = 118,000.23 × 43,153.79
4. Step 4: Simplify right side
   78,675x = 5,092,156,555.37
5. Step 5: Solve for x
   x = 5,092,156,555.37/78,675
6. Step 6: Final answer
   x = 64,723.95