Finding the Fourth Proportional to 39,314.84, 58,981.48 and 13,019.59

Step by Step Solution

1. Step 1: Write the proportion equation
   39,314.84 : 58,981.48 = 13,019.59 : x
2. Step 2: Convert to fraction form
   39,314.84/58,981.48 = 13,019.59/x
3. Step 3: Cross multiply
   39,314.84x = 58,981.48 × 13,019.59
4. Step 4: Simplify right side
   39,314.84x = 767,914,507.19
5. Step 5: Solve for x
   x = 767,914,507.19/39,314.84
6. Step 6: Final answer
   x = 19,532.43