Finding the Fourth Proportional to 56,401.96, 84,598.71 and 16,421.25

Step by Step Solution

1. Step 1: Write the proportion equation
   56,401.96 : 84,598.71 = 16,421.25 : x
2. Step 2: Convert to fraction form
   56,401.96/84,598.71 = 16,421.25/x
3. Step 3: Cross multiply
   56,401.96x = 84,598.71 × 16,421.25
4. Step 4: Simplify right side
   56,401.96x = 1,389,216,484.48
5. Step 5: Solve for x
   x = 1,389,216,484.48/56,401.96
6. Step 6: Final answer
   x = 24,630.64