Finding the Fourth Proportional to 118,546.40, 163,594.06 and 64,831.52

Step by Step Solution

1. Step 1: Write the proportion equation
   118,546.40 : 163,594.06 = 64,831.52 : x
2. Step 2: Convert to fraction form
   118,546.40/163,594.06 = 64,831.52/x
3. Step 3: Cross multiply
   118,546.40x = 163,594.06 × 64,831.52
4. Step 4: Simplify right side
   118,546.40x = 10,606,051,572.77
5. Step 5: Solve for x
   x = 10,606,051,572.77/118,546.40
6. Step 6: Final answer
   x = 89,467.51