Finding the Fourth Proportional to 56,162.34, 84,215.34 and 18,709.25

Step by Step Solution

1. Step 1: Write the proportion equation
   56,162.34 : 84,215.34 = 18,709.25 : x
2. Step 2: Convert to fraction form
   56,162.34/84,215.34 = 18,709.25/x
3. Step 3: Cross multiply
   56,162.34x = 84,215.34 × 18,709.25
4. Step 4: Simplify right side
   56,162.34x = 1,575,605,428.82
5. Step 5: Solve for x
   x = 1,575,605,428.82/56,162.34
6. Step 6: Final answer
   x = 28,054.48