Finding the Fourth Proportional to 118,449.34, 163,455.24 and 64,736.17

Step by Step Solution

1. Step 1: Write the proportion equation
   118,449.34 : 163,455.24 = 64,736.17 : x
2. Step 2: Convert to fraction form
   118,449.34/163,455.24 = 64,736.17/x
3. Step 3: Cross multiply
   118,449.34x = 163,455.24 × 64,736.17
4. Step 4: Simplify right side
   118,449.34x = 10,581,466,204.03
5. Step 5: Solve for x
   x = 10,581,466,204.03/118,449.34
6. Step 6: Final answer
   x = 89,333.26