Finding the Fourth Proportional to 39,060.01, 58,597.31 and 12,766.20

Step by Step Solution

1. Step 1: Write the proportion equation
   39,060.01 : 58,597.31 = 12,766.20 : x
2. Step 2: Convert to fraction form
   39,060.01/58,597.31 = 12,766.20/x
3. Step 3: Cross multiply
   39,060.01x = 58,597.31 × 12,766.20
4. Step 4: Simplify right side
   39,060.01x = 748,064,978.92
5. Step 5: Solve for x
   x = 748,064,978.92/39,060.01
6. Step 6: Final answer
   x = 19,151.68