Finding the Fourth Proportional to 116,821.32, 161,209.56 and 73,823.78

Step by Step Solution

1. Step 1: Write the proportion equation
   116,821.32 : 161,209.56 = 73,823.78 : x
2. Step 2: Convert to fraction form
   116,821.32/161,209.56 = 73,823.78/x
3. Step 3: Cross multiply
   116,821.32x = 161,209.56 × 73,823.78
4. Step 4: Simplify right side
   116,821.32x = 11,901,099,091.34
5. Step 5: Solve for x
   x = 11,901,099,091.34/116,821.32
6. Step 6: Final answer
   x = 101,874.38