Finding the Fourth Proportional to 191,969.33, 288,009.32 and 58,869.21

Step by Step Solution

1. Step 1: Write the proportion equation
   191,969.33 : 288,009.32 = 58,869.21 : x
2. Step 2: Convert to fraction form
   191,969.33/288,009.32 = 58,869.21/x
3. Step 3: Cross multiply
   191,969.33x = 288,009.32 × 58,869.21
4. Step 4: Simplify right side
   191,969.33x = 16,954,880,846.69
5. Step 5: Solve for x
   x = 16,954,880,846.69/191,969.33
6. Step 6: Final answer
   x = 88,320.78