Finding the Fourth Proportional to 89,421.31, 123,404.44 and 49,136.52

Step by Step Solution

1. Step 1: Write the proportion equation
   89,421.31 : 123,404.44 = 49,136.52 : x
2. Step 2: Convert to fraction form
   89,421.31/123,404.44 = 49,136.52/x
3. Step 3: Cross multiply
   89,421.31x = 123,404.44 × 49,136.52
4. Step 4: Simplify right side
   89,421.31x = 6,063,664,302.80
5. Step 5: Solve for x
   x = 6,063,664,302.80/89,421.31
6. Step 6: Final answer
   x = 67,810.06