Finding the Fourth Proportional to 191,586.69, 287,424.72 and 58,466.70

Step by Step Solution

1. Step 1: Write the proportion equation
   191,586.69 : 287,424.72 = 58,466.70 : x
2. Step 2: Convert to fraction form
   191,586.69/287,424.72 = 58,466.70/x
3. Step 3: Cross multiply
   191,586.69x = 287,424.72 × 58,466.70
4. Step 4: Simplify right side
   191,586.69x = 16,804,774,876.82
5. Step 5: Solve for x
   x = 16,804,774,876.82/191,586.69
6. Step 6: Final answer
   x = 87,713.69