Finding the Fourth Proportional to 118,782.08, 163,921.14 and 65,072.18

Step by Step Solution

1. Step 1: Write the proportion equation
   118,782.08 : 163,921.14 = 65,072.18 : x
2. Step 2: Convert to fraction form
   118,782.08/163,921.14 = 65,072.18/x
3. Step 3: Cross multiply
   118,782.08x = 163,921.14 × 65,072.18
4. Step 4: Simplify right side
   118,782.08x = 10,666,705,927.89
5. Step 5: Solve for x
   x = 10,666,705,927.89/118,782.08
6. Step 6: Final answer
   x = 89,800.63