Finding the Fourth Proportional to 118,784.17, 163,922.18 and 65,071.09

Step by Step Solution

1. Step 1: Write the proportion equation
   118,784.17 : 163,922.18 = 65,071.09 : x
2. Step 2: Convert to fraction form
   118,784.17/163,922.18 = 65,071.09/x
3. Step 3: Cross multiply
   118,784.17x = 163,922.18 × 65,071.09
4. Step 4: Simplify right side
   118,784.17x = 10,666,594,927.78
5. Step 5: Solve for x
   x = 10,666,594,927.78/118,784.17
6. Step 6: Final answer
   x = 89,798.12