Finding the Fourth Proportional to 76,013.30, 104,900.30 and 42,022.31

Step by Step Solution

1. Step 1: Write the proportion equation
   76,013.30 : 104,900.30 = 42,022.31 : x
2. Step 2: Convert to fraction form
   76,013.30/104,900.30 = 42,022.31/x
3. Step 3: Cross multiply
   76,013.30x = 104,900.30 × 42,022.31
4. Step 4: Simplify right side
   76,013.30x = 4,408,152,938.73
5. Step 5: Solve for x
   x = 4,408,152,938.73/76,013.30
6. Step 6: Final answer
   x = 57,991.86