Finding the Fourth Proportional to 118,472.02, 163,490.96 and 64,757

Step by Step Solution

1. Step 1: Write the proportion equation
   118,472.02 : 163,490.96 = 64,757 : x
2. Step 2: Convert to fraction form
   118,472.02/163,490.96 = 64,757/x
3. Step 3: Cross multiply
   118,472.02x = 163,490.96 × 64,757
4. Step 4: Simplify right side
   118,472.02x = 10,587,184,096.72
5. Step 5: Solve for x
   x = 10,587,184,096.72/118,472.02
6. Step 6: Final answer
   x = 89,364.43