Finding the Fourth Proportional to 160,423.34, 240,871.55 and 89,484.57

Step by Step Solution

1. Step 1: Write the proportion equation
   160,423.34 : 240,871.55 = 89,484.57 : x
2. Step 2: Convert to fraction form
   160,423.34/240,871.55 = 89,484.57/x
3. Step 3: Cross multiply
   160,423.34x = 240,871.55 × 89,484.57
4. Step 4: Simplify right side
   160,423.34x = 21,554,287,300.69
5. Step 5: Solve for x
   x = 21,554,287,300.69/160,423.34
6. Step 6: Final answer
   x = 134,358.80