Finding the Fourth Proportional to 328,548.42, 492,747.30 and 91,907.82

Step by Step Solution

1. Step 1: Write the proportion equation
   328,548.42 : 492,747.30 = 91,907.82 : x
2. Step 2: Convert to fraction form
   328,548.42/492,747.30 = 91,907.82/x
3. Step 3: Cross multiply
   328,548.42x = 492,747.30 × 91,907.82
4. Step 4: Simplify right side
   328,548.42x = 45,287,330,153.89
5. Step 5: Solve for x
   x = 45,287,330,153.89/328,548.42
6. Step 6: Final answer
   x = 137,840.66