Finding the Fourth Proportional to 156,898.04, 216,518.28 and 89,843

Step by Step Solution

1. Step 1: Write the proportion equation
   156,898.04 : 216,518.28 = 89,843 : x
2. Step 2: Convert to fraction form
   156,898.04/216,518.28 = 89,843/x
3. Step 3: Cross multiply
   156,898.04x = 216,518.28 × 89,843
4. Step 4: Simplify right side
   156,898.04x = 19,452,651,830.04
5. Step 5: Solve for x
   x = 19,452,651,830.04/156,898.04
6. Step 6: Final answer
   x = 123,982.76