Finding the Fourth Proportional to 39,981.69, 59,970.71 and 15,019.82

Step by Step Solution

1. Step 1: Write the proportion equation
   39,981.69 : 59,970.71 = 15,019.82 : x
2. Step 2: Convert to fraction form
   39,981.69/59,970.71 = 15,019.82/x
3. Step 3: Cross multiply
   39,981.69x = 59,970.71 × 15,019.82
4. Step 4: Simplify right side
   39,981.69x = 900,748,894.52
5. Step 5: Solve for x
   x = 900,748,894.52/39,981.69
6. Step 6: Final answer
   x = 22,529.04