Finding the Fourth Proportional to 118,472.81, 163,492.48 and 64,758.03

Step by Step Solution

1. Step 1: Write the proportion equation
   118,472.81 : 163,492.48 = 64,758.03 : x
2. Step 2: Convert to fraction form
   118,472.81/163,492.48 = 64,758.03/x
3. Step 3: Cross multiply
   118,472.81x = 163,492.48 × 64,758.03
4. Step 4: Simplify right side
   118,472.81x = 10,587,451,171.45
5. Step 5: Solve for x
   x = 10,587,451,171.45/118,472.81
6. Step 6: Final answer
   x = 89,366.09