Finding the Fourth Proportional to 42,644.90, 63,981.50 and 13,063.02

Step by Step Solution

1. Step 1: Write the proportion equation
   42,644.90 : 63,981.50 = 13,063.02 : x
2. Step 2: Convert to fraction form
   42,644.90/63,981.50 = 13,063.02/x
3. Step 3: Cross multiply
   42,644.90x = 63,981.50 × 13,063.02
4. Step 4: Simplify right side
   42,644.90x = 835,791,548.81
5. Step 5: Solve for x
   x = 835,791,548.81/42,644.90
6. Step 6: Final answer
   x = 19,598.87