Finding the Fourth Proportional to 118,851.17, 164,015.87 and 65,135.00

Step by Step Solution

1. Step 1: Write the proportion equation
   118,851.17 : 164,015.87 = 65,135.00 : x
2. Step 2: Convert to fraction form
   118,851.17/164,015.87 = 65,135.00/x
3. Step 3: Cross multiply
   118,851.17x = 164,015.87 × 65,135.00
4. Step 4: Simplify right side
   118,851.17x = 10,683,173,776.81
5. Step 5: Solve for x
   x = 10,683,173,776.81/118,851.17
6. Step 6: Final answer
   x = 89,886.99