Finding the Fourth Proportional to 45,397.89, 68,153.54 and 30,672.09

Step by Step Solution

1. Step 1: Write the proportion equation
   45,397.89 : 68,153.54 = 30,672.09 : x
2. Step 2: Convert to fraction form
   45,397.89/68,153.54 = 30,672.09/x
3. Step 3: Cross multiply
   45,397.89x = 68,153.54 × 30,672.09
4. Step 4: Simplify right side
   45,397.89x = 2,090,411,359.34
5. Step 5: Solve for x
   x = 2,090,411,359.34/45,397.89
6. Step 6: Final answer
   x = 46,046.44