Finding the Fourth Proportional to 116,808.62, 161,192.52 and 65,820.44

Step by Step Solution

1. Step 1: Write the proportion equation
   116,808.62 : 161,192.52 = 65,820.44 : x
2. Step 2: Convert to fraction form
   116,808.62/161,192.52 = 65,820.44/x
3. Step 3: Cross multiply
   116,808.62x = 161,192.52 × 65,820.44
4. Step 4: Simplify right side
   116,808.62x = 10,609,761,785.15
5. Step 5: Solve for x
   x = 10,609,761,785.15/116,808.62
6. Step 6: Final answer
   x = 90,830.30