Finding the Fourth Proportional to 118,902.32, 164,085.16 and 65,186.19

Step by Step Solution

1. Step 1: Write the proportion equation
   118,902.32 : 164,085.16 = 65,186.19 : x
2. Step 2: Convert to fraction form
   118,902.32/164,085.16 = 65,186.19/x
3. Step 3: Cross multiply
   118,902.32x = 164,085.16 × 65,186.19
4. Step 4: Simplify right side
   118,902.32x = 10,696,086,415.94
5. Step 5: Solve for x
   x = 10,696,086,415.94/118,902.32
6. Step 6: Final answer
   x = 89,956.92