Finding the Fourth Proportional to 42,060.96, 63,081.72 and 12,471.66

Step by Step Solution

1. Step 1: Write the proportion equation
   42,060.96 : 63,081.72 = 12,471.66 : x
2. Step 2: Convert to fraction form
   42,060.96/63,081.72 = 12,471.66/x
3. Step 3: Cross multiply
   42,060.96x = 63,081.72 × 12,471.66
4. Step 4: Simplify right side
   42,060.96x = 786,733,764.06
5. Step 5: Solve for x
   x = 786,733,764.06/42,060.96
6. Step 6: Final answer
   x = 18,704.61