Finding the Fourth Proportional to 38,814.34, 58,215.84 and 19,087.60

Step by Step Solution

1. Step 1: Write the proportion equation
   38,814.34 : 58,215.84 = 19,087.60 : x
2. Step 2: Convert to fraction form
   38,814.34/58,215.84 = 19,087.60/x
3. Step 3: Cross multiply
   38,814.34x = 58,215.84 × 19,087.60
4. Step 4: Simplify right side
   38,814.34x = 1,111,200,667.58
5. Step 5: Solve for x
   x = 1,111,200,667.58/38,814.34
6. Step 6: Final answer
   x = 28,628.61