Finding the Fourth Proportional to 191,587.69, 287,426.22 and 58,467.70

Step by Step Solution

1. Step 1: Write the proportion equation
   191,587.69 : 287,426.22 = 58,467.70 : x
2. Step 2: Convert to fraction form
   191,587.69/287,426.22 = 58,467.70/x
3. Step 3: Cross multiply
   191,587.69x = 287,426.22 × 58,467.70
4. Step 4: Simplify right side
   191,587.69x = 16,805,150,003.09
5. Step 5: Solve for x
   x = 16,805,150,003.09/191,587.69
6. Step 6: Final answer
   x = 87,715.19