Finding the Fourth Proportional to 118,783.94, 163,921.86 and 65,070.86

Step by Step Solution

1. Step 1: Write the proportion equation
   118,783.94 : 163,921.86 = 65,070.86 : x
2. Step 2: Convert to fraction form
   118,783.94/163,921.86 = 65,070.86/x
3. Step 3: Cross multiply
   118,783.94x = 163,921.86 × 65,070.86
4. Step 4: Simplify right side
   118,783.94x = 10,666,536,403.00
5. Step 5: Solve for x
   x = 10,666,536,403.00/118,783.94
6. Step 6: Final answer
   x = 89,797.80