Finding the Fourth Proportional to 71,401.65, 107,124.86 and 42,969.63

Step by Step Solution

1. Step 1: Write the proportion equation
   71,401.65 : 107,124.86 = 42,969.63 : x
2. Step 2: Convert to fraction form
   71,401.65/107,124.86 = 42,969.63/x
3. Step 3: Cross multiply
   71,401.65x = 107,124.86 × 42,969.63
4. Step 4: Simplify right side
   71,401.65x = 4,603,115,598.00
5. Step 5: Solve for x
   x = 4,603,115,598.00/71,401.65
6. Step 6: Final answer
   x = 64,467.92