Finding the Fourth Proportional to 70,365.30, 105,567.69 and 28,274.94

Step by Step Solution

1. Step 1: Write the proportion equation
   70,365.30 : 105,567.69 = 28,274.94 : x
2. Step 2: Convert to fraction form
   70,365.30/105,567.69 = 28,274.94/x
3. Step 3: Cross multiply
   70,365.30x = 105,567.69 × 28,274.94
4. Step 4: Simplify right side
   70,365.30x = 2,984,920,100.69
5. Step 5: Solve for x
   x = 2,984,920,100.69/70,365.30
6. Step 6: Final answer
   x = 42,420.34