Finding the Fourth Proportional to 118,441.50, 163,449.69 and 64,726.52

Step by Step Solution

1. Step 1: Write the proportion equation
   118,441.50 : 163,449.69 = 64,726.52 : x
2. Step 2: Convert to fraction form
   118,441.50/163,449.69 = 64,726.52/x
3. Step 3: Cross multiply
   118,441.50x = 163,449.69 × 64,726.52
4. Step 4: Simplify right side
   118,441.50x = 10,579,529,628.78
5. Step 5: Solve for x
   x = 10,579,529,628.78/118,441.50
6. Step 6: Final answer
   x = 89,322.83