Finding the Fourth Proportional to 191,461.95, 287,234.37 and 58,338.72

Step by Step Solution

1. Step 1: Write the proportion equation
   191,461.95 : 287,234.37 = 58,338.72 : x
2. Step 2: Convert to fraction form
   191,461.95/287,234.37 = 58,338.72/x
3. Step 3: Cross multiply
   191,461.95x = 287,234.37 × 58,338.72
4. Step 4: Simplify right side
   191,461.95x = 16,756,885,485.81
5. Step 5: Solve for x
   x = 16,756,885,485.81/191,461.95
6. Step 6: Final answer
   x = 87,520.71