Finding the Fourth Proportional to 118,848.38, 164,010.78 and 65,135.52

Step by Step Solution

1. Step 1: Write the proportion equation
   118,848.38 : 164,010.78 = 65,135.52 : x
2. Step 2: Convert to fraction form
   118,848.38/164,010.78 = 65,135.52/x
3. Step 3: Cross multiply
   118,848.38x = 164,010.78 × 65,135.52
4. Step 4: Simplify right side
   118,848.38x = 10,682,927,440.91
5. Step 5: Solve for x
   x = 10,682,927,440.91/118,848.38
6. Step 6: Final answer
   x = 89,887.03