Finding the Fourth Proportional to 60,572.72, 90,870.42 and 19,010

Step by Step Solution

1. Step 1: Write the proportion equation
   60,572.72 : 90,870.42 = 19,010 : x
2. Step 2: Convert to fraction form
   60,572.72/90,870.42 = 19,010/x
3. Step 3: Cross multiply
   60,572.72x = 90,870.42 × 19,010
4. Step 4: Simplify right side
   60,572.72x = 1,727,446,684.20
5. Step 5: Solve for x
   x = 1,727,446,684.20/60,572.72
6. Step 6: Final answer
   x = 28,518.56