Finding the Fourth Proportional to 77,910, 107,513.52 and 43,920.48

Step by Step Solution

1. Step 1: Write the proportion equation
   77,910 : 107,513.52 = 43,920.48 : x
2. Step 2: Convert to fraction form
   77,910/107,513.52 = 43,920.48/x
3. Step 3: Cross multiply
   77,910x = 107,513.52 × 43,920.48
4. Step 4: Simplify right side
   77,910x = 4,722,045,404.89
5. Step 5: Solve for x
   x = 4,722,045,404.89/77,910
6. Step 6: Final answer
   x = 60,608.98