Finding the Fourth Proportional to 118,479.66, 163,501.53 and 64,764.72

Step by Step Solution

1. Step 1: Write the proportion equation
   118,479.66 : 163,501.53 = 64,764.72 : x
2. Step 2: Convert to fraction form
   118,479.66/163,501.53 = 64,764.72/x
3. Step 3: Cross multiply
   118,479.66x = 163,501.53 × 64,764.72
4. Step 4: Simplify right side
   118,479.66x = 10,589,130,810.02
5. Step 5: Solve for x
   x = 10,589,130,810.02/118,479.66
6. Step 6: Final answer
   x = 89,375.09