Finding the Fourth Proportional to 156,809.14, 216,401.05 and 88,826.09

Step by Step Solution

1. Step 1: Write the proportion equation
   156,809.14 : 216,401.05 = 88,826.09 : x
2. Step 2: Convert to fraction form
   156,809.14/216,401.05 = 88,826.09/x
3. Step 3: Cross multiply
   156,809.14x = 216,401.05 × 88,826.09
4. Step 4: Simplify right side
   156,809.14x = 19,222,059,623.57
5. Step 5: Solve for x
   x = 19,222,059,623.57/156,809.14
6. Step 6: Final answer
   x = 122,582.52