Finding the Fourth Proportional to 76,011.97, 104,895.82 and 42,021.34

Step by Step Solution

1. Step 1: Write the proportion equation
   76,011.97 : 104,895.82 = 42,021.34 : x
2. Step 2: Convert to fraction form
   76,011.97/104,895.82 = 42,021.34/x
3. Step 3: Cross multiply
   76,011.97x = 104,895.82 × 42,021.34
4. Step 4: Simplify right side
   76,011.97x = 4,407,862,916.80
5. Step 5: Solve for x
   x = 4,407,862,916.80/76,011.97
6. Step 6: Final answer
   x = 57,989.06