Finding the Fourth Proportional to 118,756.50, 163,877.72 and 65,040.37

Step by Step Solution

1. Step 1: Write the proportion equation
   118,756.50 : 163,877.72 = 65,040.37 : x
2. Step 2: Convert to fraction form
   118,756.50/163,877.72 = 65,040.37/x
3. Step 3: Cross multiply
   118,756.50x = 163,877.72 × 65,040.37
4. Step 4: Simplify right side
   118,756.50x = 10,658,666,808.66
5. Step 5: Solve for x
   x = 10,658,666,808.66/118,756.50
6. Step 6: Final answer
   x = 89,752.28