Finding the Fourth Proportional to 72,668.01, 100,258.71 and 43,978.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,668.01 : 100,258.71 = 43,978.50 : x
2. Step 2: Convert to fraction form
   72,668.01/100,258.71 = 43,978.50/x
3. Step 3: Cross multiply
   72,668.01x = 100,258.71 × 43,978.50
4. Step 4: Simplify right side
   72,668.01x = 4,409,227,677.74
5. Step 5: Solve for x
   x = 4,409,227,677.74/72,668.01
6. Step 6: Final answer
   x = 60,676.32