Finding the Fourth Proportional to 78,847, 108,813.30 and 45,315.16

Step by Step Solution

1. Step 1: Write the proportion equation
   78,847 : 108,813.30 = 45,315.16 : x
2. Step 2: Convert to fraction form
   78,847/108,813.30 = 45,315.16/x
3. Step 3: Cross multiply
   78,847x = 108,813.30 × 45,315.16
4. Step 4: Simplify right side
   78,847x = 4,930,892,099.63
5. Step 5: Solve for x
   x = 4,930,892,099.63/78,847
6. Step 6: Final answer
   x = 62,537.47