Finding the Fourth Proportional to 191,328.93, 287,034.86 and 58,205.69

Step by Step Solution

1. Step 1: Write the proportion equation
   191,328.93 : 287,034.86 = 58,205.69 : x
2. Step 2: Convert to fraction form
   191,328.93/287,034.86 = 58,205.69/x
3. Step 3: Cross multiply
   191,328.93x = 287,034.86 × 58,205.69
4. Step 4: Simplify right side
   191,328.93x = 16,707,061,867.07
5. Step 5: Solve for x
   x = 16,707,061,867.07/191,328.93
6. Step 6: Final answer
   x = 87,321.15