Finding the Fourth Proportional to 70,467.33, 105,560.15 and 42,372

Step by Step Solution

1. Step 1: Write the proportion equation
   70,467.33 : 105,560.15 = 42,372 : x
2. Step 2: Convert to fraction form
   70,467.33/105,560.15 = 42,372/x
3. Step 3: Cross multiply
   70,467.33x = 105,560.15 × 42,372
4. Step 4: Simplify right side
   70,467.33x = 4,472,794,675.80
5. Step 5: Solve for x
   x = 4,472,794,675.80/70,467.33
6. Step 6: Final answer
   x = 63,473.31