Finding the Fourth Proportional to 118,499.16, 163,528.44 and 64,784.22

Step by Step Solution

1. Step 1: Write the proportion equation
   118,499.16 : 163,528.44 = 64,784.22 : x
2. Step 2: Convert to fraction form
   118,499.16/163,528.44 = 64,784.22/x
3. Step 3: Cross multiply
   118,499.16x = 163,528.44 × 64,784.22
4. Step 4: Simplify right side
   118,499.16x = 10,594,062,433.22
5. Step 5: Solve for x
   x = 10,594,062,433.22/118,499.16
6. Step 6: Final answer
   x = 89,402.00