Finding the Fourth Proportional to 63,019.97, 86,900.69 and 56,672.81

Step by Step Solution

1. Step 1: Write the proportion equation
   63,019.97 : 86,900.69 = 56,672.81 : x
2. Step 2: Convert to fraction form
   63,019.97/86,900.69 = 56,672.81/x
3. Step 3: Cross multiply
   63,019.97x = 86,900.69 × 56,672.81
4. Step 4: Simplify right side
   63,019.97x = 4,924,906,009.87
5. Step 5: Solve for x
   x = 4,924,906,009.87/63,019.97
6. Step 6: Final answer
   x = 78,148.34