Finding the Fourth Proportional to 42,109.38, 63,164.03 and 12,527.15

Step by Step Solution

1. Step 1: Write the proportion equation
   42,109.38 : 63,164.03 = 12,527.15 : x
2. Step 2: Convert to fraction form
   42,109.38/63,164.03 = 12,527.15/x
3. Step 3: Cross multiply
   42,109.38x = 63,164.03 × 12,527.15
4. Step 4: Simplify right side
   42,109.38x = 791,264,899.96
5. Step 5: Solve for x
   x = 791,264,899.96/42,109.38
6. Step 6: Final answer
   x = 18,790.70