Finding the Fourth Proportional to 118,164.87, 163,069.46 and 64,449.88

Step by Step Solution

1. Step 1: Write the proportion equation
   118,164.87 : 163,069.46 = 64,449.88 : x
2. Step 2: Convert to fraction form
   118,164.87/163,069.46 = 64,449.88/x
3. Step 3: Cross multiply
   118,164.87x = 163,069.46 × 64,449.88
4. Step 4: Simplify right side
   118,164.87x = 10,509,807,536.34
5. Step 5: Solve for x
   x = 10,509,807,536.34/118,164.87
6. Step 6: Final answer
   x = 88,941.90