Finding the Fourth Proportional to 118,479.16, 163,500.84 and 64,764.16

Step by Step Solution

1. Step 1: Write the proportion equation
   118,479.16 : 163,500.84 = 64,764.16 : x
2. Step 2: Convert to fraction form
   118,479.16/163,500.84 = 64,764.16/x
3. Step 3: Cross multiply
   118,479.16x = 163,500.84 × 64,764.16
4. Step 4: Simplify right side
   118,479.16x = 10,588,994,561.89
5. Step 5: Solve for x
   x = 10,588,994,561.89/118,479.16
6. Step 6: Final answer
   x = 89,374.32