Finding the Fourth Proportional to 42,547.86, 63,831.32 and 12,968.01

Step by Step Solution

1. Step 1: Write the proportion equation
   42,547.86 : 63,831.32 = 12,968.01 : x
2. Step 2: Convert to fraction form
   42,547.86/63,831.32 = 12,968.01/x
3. Step 3: Cross multiply
   42,547.86x = 63,831.32 × 12,968.01
4. Step 4: Simplify right side
   42,547.86x = 827,765,131.23
5. Step 5: Solve for x
   x = 827,765,131.23/42,547.86
6. Step 6: Final answer
   x = 19,454.92