Finding the Fourth Proportional to 76,052.31, 104,952.42 and 42,518.31

Step by Step Solution

1. Step 1: Write the proportion equation
   76,052.31 : 104,952.42 = 42,518.31 : x
2. Step 2: Convert to fraction form
   76,052.31/104,952.42 = 42,518.31/x
3. Step 3: Cross multiply
   76,052.31x = 104,952.42 × 42,518.31
4. Step 4: Simplify right side
   76,052.31x = 4,462,399,528.81
5. Step 5: Solve for x
   x = 4,462,399,528.81/76,052.31
6. Step 6: Final answer
   x = 58,675.40