Finding the Fourth Proportional to 49,830.50, 74,746.02 and 12,894.50

Step by Step Solution

1. Step 1: Write the proportion equation
   49,830.50 : 74,746.02 = 12,894.50 : x
2. Step 2: Convert to fraction form
   49,830.50/74,746.02 = 12,894.50/x
3. Step 3: Cross multiply
   49,830.50x = 74,746.02 × 12,894.50
4. Step 4: Simplify right side
   49,830.50x = 963,812,554.89
5. Step 5: Solve for x
   x = 963,812,554.89/49,830.50
6. Step 6: Final answer
   x = 19,341.82