Finding the Fourth Proportional to 145,068.98, 217,682.89 and 56,325.98

Step by Step Solution

1. Step 1: Write the proportion equation
   145,068.98 : 217,682.89 = 56,325.98 : x
2. Step 2: Convert to fraction form
   145,068.98/217,682.89 = 56,325.98/x
3. Step 3: Cross multiply
   145,068.98x = 217,682.89 × 56,325.98
4. Step 4: Simplify right side
   145,068.98x = 12,261,202,828.71
5. Step 5: Solve for x
   x = 12,261,202,828.71/145,068.98
6. Step 6: Final answer
   x = 84,519.81