Finding the Fourth Proportional to 42,084.72, 63,116.28 and 12,494.52

Step by Step Solution

1. Step 1: Write the proportion equation
   42,084.72 : 63,116.28 = 12,494.52 : x
2. Step 2: Convert to fraction form
   42,084.72/63,116.28 = 12,494.52/x
3. Step 3: Cross multiply
   42,084.72x = 63,116.28 × 12,494.52
4. Step 4: Simplify right side
   42,084.72x = 788,607,622.79
5. Step 5: Solve for x
   x = 788,607,622.79/42,084.72
6. Step 6: Final answer
   x = 18,738.57