Finding the Fourth Proportional to 87,449.69, 120,388.73 and 83,432.58

Step by Step Solution

1. Step 1: Write the proportion equation
   87,449.69 : 120,388.73 = 83,432.58 : x
2. Step 2: Convert to fraction form
   87,449.69/120,388.73 = 83,432.58/x
3. Step 3: Cross multiply
   87,449.69x = 120,388.73 × 83,432.58
4. Step 4: Simplify right side
   87,449.69x = 10,044,341,929.66
5. Step 5: Solve for x
   x = 10,044,341,929.66/87,449.69
6. Step 6: Final answer
   x = 114,858.53