Finding the Fourth Proportional to 42,397.84, 63,582 and 12,404.08

Step by Step Solution

1. Step 1: Write the proportion equation
   42,397.84 : 63,582 = 12,404.08 : x
2. Step 2: Convert to fraction form
   42,397.84/63,582 = 12,404.08/x
3. Step 3: Cross multiply
   42,397.84x = 63,582 × 12,404.08
4. Step 4: Simplify right side
   42,397.84x = 788,676,214.56
5. Step 5: Solve for x
   x = 788,676,214.56/42,397.84
6. Step 6: Final answer
   x = 18,601.80