Finding the Fourth Proportional to 118,524.72, 163,564.14 and 64,814.70

Step by Step Solution

1. Step 1: Write the proportion equation
   118,524.72 : 163,564.14 = 64,814.70 : x
2. Step 2: Convert to fraction form
   118,524.72/163,564.14 = 64,814.70/x
3. Step 3: Cross multiply
   118,524.72x = 163,564.14 × 64,814.70
4. Step 4: Simplify right side
   118,524.72x = 10,601,360,664.86
5. Step 5: Solve for x
   x = 10,601,360,664.86/118,524.72
6. Step 6: Final answer
   x = 89,444.30