Finding the Fourth Proportional to 118,842.35, 164,003.73 and 65,126.21

Step by Step Solution

1. Step 1: Write the proportion equation
   118,842.35 : 164,003.73 = 65,126.21 : x
2. Step 2: Convert to fraction form
   118,842.35/164,003.73 = 65,126.21/x
3. Step 3: Cross multiply
   118,842.35x = 164,003.73 × 65,126.21
4. Step 4: Simplify right side
   118,842.35x = 10,680,941,360.76
5. Step 5: Solve for x
   x = 10,680,941,360.76/118,842.35
6. Step 6: Final answer
   x = 89,874.88