Finding the Fourth Proportional to 156,651, 216,178.38 and 89,583

Step by Step Solution

1. Step 1: Write the proportion equation
   156,651 : 216,178.38 = 89,583 : x
2. Step 2: Convert to fraction form
   156,651/216,178.38 = 89,583/x
3. Step 3: Cross multiply
   156,651x = 216,178.38 × 89,583
4. Step 4: Simplify right side
   156,651x = 19,365,907,815.54
5. Step 5: Solve for x
   x = 19,365,907,815.54/156,651
6. Step 6: Final answer
   x = 123,624.54