Finding the Fourth Proportional to 118,856.07, 164,022.66 and 65,139.93

Step by Step Solution

1. Step 1: Write the proportion equation
   118,856.07 : 164,022.66 = 65,139.93 : x
2. Step 2: Convert to fraction form
   118,856.07/164,022.66 = 65,139.93/x
3. Step 3: Cross multiply
   118,856.07x = 164,022.66 × 65,139.93
4. Step 4: Simplify right side
   118,856.07x = 10,684,424,590.81
5. Step 5: Solve for x
   x = 10,684,424,590.81/118,856.07
6. Step 6: Final answer
   x = 89,893.81