Finding the Fourth Proportional to 118,802.10, 163,947.11 and 65,085.96

Step by Step Solution

1. Step 1: Write the proportion equation
   118,802.10 : 163,947.11 = 65,085.96 : x
2. Step 2: Convert to fraction form
   118,802.10/163,947.11 = 65,085.96/x
3. Step 3: Cross multiply
   118,802.10x = 163,947.11 × 65,085.96
4. Step 4: Simplify right side
   118,802.10x = 10,670,654,718.15
5. Step 5: Solve for x
   x = 10,670,654,718.15/118,802.10
6. Step 6: Final answer
   x = 89,818.74