Finding the Fourth Proportional to 118,886.32, 164,062.04 and 65,171.16

Step by Step Solution

1. Step 1: Write the proportion equation
   118,886.32 : 164,062.04 = 65,171.16 : x
2. Step 2: Convert to fraction form
   118,886.32/164,062.04 = 65,171.16/x
3. Step 3: Cross multiply
   118,886.32x = 164,062.04 × 65,171.16
4. Step 4: Simplify right side
   118,886.32x = 10,692,113,458.77
5. Step 5: Solve for x
   x = 10,692,113,458.77/118,886.32
6. Step 6: Final answer
   x = 89,935.61