Finding the Fourth Proportional to 118,410.63, 163,404.76 and 64,694.49

Step by Step Solution

1. Step 1: Write the proportion equation
   118,410.63 : 163,404.76 = 64,694.49 : x
2. Step 2: Convert to fraction form
   118,410.63/163,404.76 = 64,694.49/x
3. Step 3: Cross multiply
   118,410.63x = 163,404.76 × 64,694.49
4. Step 4: Simplify right side
   118,410.63x = 10,571,387,877.72
5. Step 5: Solve for x
   x = 10,571,387,877.72/118,410.63
6. Step 6: Final answer
   x = 89,277.36