Finding the Fourth Proportional to 86,328.52, 129,483.46 and 23,155

Step by Step Solution

1. Step 1: Write the proportion equation
   86,328.52 : 129,483.46 = 23,155 : x
2. Step 2: Convert to fraction form
   86,328.52/129,483.46 = 23,155/x
3. Step 3: Cross multiply
   86,328.52x = 129,483.46 × 23,155
4. Step 4: Simplify right side
   86,328.52x = 2,998,189,516.30
5. Step 5: Solve for x
   x = 2,998,189,516.30/86,328.52
6. Step 6: Final answer
   x = 34,730.00