Finding the Fourth Proportional to 89,290.35, 123,212.52 and 52,985.52

Step by Step Solution

1. Step 1: Write the proportion equation
   89,290.35 : 123,212.52 = 52,985.52 : x
2. Step 2: Convert to fraction form
   89,290.35/123,212.52 = 52,985.52/x
3. Step 3: Cross multiply
   89,290.35x = 123,212.52 × 52,985.52
4. Step 4: Simplify right side
   89,290.35x = 6,528,479,442.71
5. Step 5: Solve for x
   x = 6,528,479,442.71/89,290.35
6. Step 6: Final answer
   x = 73,115.17