Finding the Fourth Proportional to 40,587.72, 60,887.34 and 12,510.12

Step by Step Solution

1. Step 1: Write the proportion equation
   40,587.72 : 60,887.34 = 12,510.12 : x
2. Step 2: Convert to fraction form
   40,587.72/60,887.34 = 12,510.12/x
3. Step 3: Cross multiply
   40,587.72x = 60,887.34 × 12,510.12
4. Step 4: Simplify right side
   40,587.72x = 761,707,929.88
5. Step 5: Solve for x
   x = 761,707,929.88/40,587.72
6. Step 6: Final answer
   x = 18,766.96