Finding the Fourth Proportional to 191,411.94, 287,096.02 and 51,181.50

Step by Step Solution

1. Step 1: Write the proportion equation
   191,411.94 : 287,096.02 = 51,181.50 : x
2. Step 2: Convert to fraction form
   191,411.94/287,096.02 = 51,181.50/x
3. Step 3: Cross multiply
   191,411.94x = 287,096.02 × 51,181.50
4. Step 4: Simplify right side
   191,411.94x = 14,694,004,947.63
5. Step 5: Solve for x
   x = 14,694,004,947.63/191,411.94
6. Step 6: Final answer
   x = 76,766.40