Finding the Fourth Proportional to 118,890.60, 164,085.80 and 73,583.12

Step by Step Solution

1. Step 1: Write the proportion equation
   118,890.60 : 164,085.80 = 73,583.12 : x
2. Step 2: Convert to fraction form
   118,890.60/164,085.80 = 73,583.12/x
3. Step 3: Cross multiply
   118,890.60x = 164,085.80 × 73,583.12
4. Step 4: Simplify right side
   118,890.60x = 12,073,945,111.70
5. Step 5: Solve for x
   x = 12,073,945,111.70/118,890.60
6. Step 6: Final answer
   x = 101,555.09