Finding the Fourth Proportional to 42,366.03, 63,549.53 and 12,784.12

Step by Step Solution

1. Step 1: Write the proportion equation
   42,366.03 : 63,549.53 = 12,784.12 : x
2. Step 2: Convert to fraction form
   42,366.03/63,549.53 = 12,784.12/x
3. Step 3: Cross multiply
   42,366.03x = 63,549.53 × 12,784.12
4. Step 4: Simplify right side
   42,366.03x = 812,424,642.61
5. Step 5: Solve for x
   x = 812,424,642.61/42,366.03
6. Step 6: Final answer
   x = 19,176.32