Finding the Fourth Proportional to 56,891.98, 85,347.98 and 19,443.25

Step by Step Solution

1. Step 1: Write the proportion equation
   56,891.98 : 85,347.98 = 19,443.25 : x
2. Step 2: Convert to fraction form
   56,891.98/85,347.98 = 19,443.25/x
3. Step 3: Cross multiply
   56,891.98x = 85,347.98 × 19,443.25
4. Step 4: Simplify right side
   56,891.98x = 1,659,441,588.18
5. Step 5: Solve for x
   x = 1,659,441,588.18/56,891.98
6. Step 6: Final answer
   x = 29,168.29