Finding the Fourth Proportional to 118,974.42, 164,189.30 and 65,261.70

Step by Step Solution

1. Step 1: Write the proportion equation
   118,974.42 : 164,189.30 = 65,261.70 : x
2. Step 2: Convert to fraction form
   118,974.42/164,189.30 = 65,261.70/x
3. Step 3: Cross multiply
   118,974.42x = 164,189.30 × 65,261.70
4. Step 4: Simplify right side
   118,974.42x = 10,715,272,513.50
5. Step 5: Solve for x
   x = 10,715,272,513.50/118,974.42
6. Step 6: Final answer
   x = 90,063.67