Finding the Fourth Proportional to 118,958.84, 164,161.80 and 64,510.16

Step by Step Solution

1. Step 1: Write the proportion equation
   118,958.84 : 164,161.80 = 64,510.16 : x
2. Step 2: Convert to fraction form
   118,958.84/164,161.80 = 64,510.16/x
3. Step 3: Cross multiply
   118,958.84x = 164,161.80 × 64,510.16
4. Step 4: Simplify right side
   118,958.84x = 10,590,103,983.89
5. Step 5: Solve for x
   x = 10,590,103,983.89/118,958.84
6. Step 6: Final answer
   x = 89,023.26