Finding the Fourth Proportional to 118,443, 163,451.34 and 65,451

Step by Step Solution

1. Step 1: Write the proportion equation
   118,443 : 163,451.34 = 65,451 : x
2. Step 2: Convert to fraction form
   118,443/163,451.34 = 65,451/x
3. Step 3: Cross multiply
   118,443x = 163,451.34 × 65,451
4. Step 4: Simplify right side
   118,443x = 10,698,053,654.34
5. Step 5: Solve for x
   x = 10,698,053,654.34/118,443
6. Step 6: Final answer
   x = 90,322.38