Finding the Fourth Proportional to 76,424.52, 105,475.52 and 42,890.52

Step by Step Solution

1. Step 1: Write the proportion equation
   76,424.52 : 105,475.52 = 42,890.52 : x
2. Step 2: Convert to fraction form
   76,424.52/105,475.52 = 42,890.52/x
3. Step 3: Cross multiply
   76,424.52x = 105,475.52 × 42,890.52
4. Step 4: Simplify right side
   76,424.52x = 4,523,899,900.07
5. Step 5: Solve for x
   x = 4,523,899,900.07/76,424.52
6. Step 6: Final answer
   x = 59,194.35