Finding the Fourth Proportional to 38,890.29, 58,320.84 and 30,667.17

Step by Step Solution

1. Step 1: Write the proportion equation
   38,890.29 : 58,320.84 = 30,667.17 : x
2. Step 2: Convert to fraction form
   38,890.29/58,320.84 = 30,667.17/x
3. Step 3: Cross multiply
   38,890.29x = 58,320.84 × 30,667.17
4. Step 4: Simplify right side
   38,890.29x = 1,788,535,114.82
5. Step 5: Solve for x
   x = 1,788,535,114.82/38,890.29
6. Step 6: Final answer
   x = 45,989.25