Finding the Fourth Proportional to 118,164.74, 163,069.29 and 64,449.76

Step by Step Solution

1. Step 1: Write the proportion equation
   118,164.74 : 163,069.29 = 64,449.76 : x
2. Step 2: Convert to fraction form
   118,164.74/163,069.29 = 64,449.76/x
3. Step 3: Cross multiply
   118,164.74x = 163,069.29 × 64,449.76
4. Step 4: Simplify right side
   118,164.74x = 10,509,776,119.86
5. Step 5: Solve for x
   x = 10,509,776,119.86/118,164.74
6. Step 6: Final answer
   x = 88,941.73