Finding the Fourth Proportional to 156,243, 234,404.46 and 45,435

Step by Step Solution

1. Step 1: Write the proportion equation
   156,243 : 234,404.46 = 45,435 : x
2. Step 2: Convert to fraction form
   156,243/234,404.46 = 45,435/x
3. Step 3: Cross multiply
   156,243x = 234,404.46 × 45,435
4. Step 4: Simplify right side
   156,243x = 10,650,166,640.10
5. Step 5: Solve for x
   x = 10,650,166,640.10/156,243
6. Step 6: Final answer
   x = 68,164.12