Finding the Fourth Proportional to 326,017.62, 488,973.95 and 89,304.98

Step by Step Solution

1. Step 1: Write the proportion equation
   326,017.62 : 488,973.95 = 89,304.98 : x
2. Step 2: Convert to fraction form
   326,017.62/488,973.95 = 89,304.98/x
3. Step 3: Cross multiply
   326,017.62x = 488,973.95 × 89,304.98
4. Step 4: Simplify right side
   326,017.62x = 43,667,805,933.88
5. Step 5: Solve for x
   x = 43,667,805,933.88/326,017.62
6. Step 6: Final answer
   x = 133,943.09