Finding the Fourth Proportional to 77,105.48, 106,404.18 and 43,570.76

Step by Step Solution

1. Step 1: Write the proportion equation
   77,105.48 : 106,404.18 = 43,570.76 : x
2. Step 2: Convert to fraction form
   77,105.48/106,404.18 = 43,570.76/x
3. Step 3: Cross multiply
   77,105.48x = 106,404.18 × 43,570.76
4. Step 4: Simplify right side
   77,105.48x = 4,636,110,989.78
5. Step 5: Solve for x
   x = 4,636,110,989.78/77,105.48
6. Step 6: Final answer
   x = 60,126.87