Finding the Fourth Proportional to 89,011.49, 122,780.52 and 55,030.37

Step by Step Solution

1. Step 1: Write the proportion equation
   89,011.49 : 122,780.52 = 55,030.37 : x
2. Step 2: Convert to fraction form
   89,011.49/122,780.52 = 55,030.37/x
3. Step 3: Cross multiply
   89,011.49x = 122,780.52 × 55,030.37
4. Step 4: Simplify right side
   89,011.49x = 6,756,656,830.49
5. Step 5: Solve for x
   x = 6,756,656,830.49/89,011.49
6. Step 6: Final answer
   x = 75,907.70