Finding the Fourth Proportional to 118,715, 163,826.70 and 65,723

Step by Step Solution

1. Step 1: Write the proportion equation
   118,715 : 163,826.70 = 65,723 : x
2. Step 2: Convert to fraction form
   118,715/163,826.70 = 65,723/x
3. Step 3: Cross multiply
   118,715x = 163,826.70 × 65,723
4. Step 4: Simplify right side
   118,715x = 10,767,182,204.10
5. Step 5: Solve for x
   x = 10,767,182,204.10/118,715
6. Step 6: Final answer
   x = 90,697.74