Finding the Fourth Proportional to 42,096.18, 63,154.66 and 12,513.89

Step by Step Solution

1. Step 1: Write the proportion equation
   42,096.18 : 63,154.66 = 12,513.89 : x
2. Step 2: Convert to fraction form
   42,096.18/63,154.66 = 12,513.89/x
3. Step 3: Cross multiply
   42,096.18x = 63,154.66 × 12,513.89
4. Step 4: Simplify right side
   42,096.18x = 790,310,341.63
5. Step 5: Solve for x
   x = 790,310,341.63/42,096.18
6. Step 6: Final answer
   x = 18,773.92