Finding the Fourth Proportional to 91,178,443.72, 125,826,456 and 49,362,949.72

Step by Step Solution

1. Step 1: Write the proportion equation
   91,178,443.72 : 125,826,456 = 49,362,949.72 : x
2. Step 2: Convert to fraction form
   91,178,443.72/125,826,456 = 49,362,949.72/x
3. Step 3: Cross multiply
   91,178,443.72x = 125,826,456 × 49,362,949.72
4. Step 4: Simplify right side
   91,178,443.72x = 6,211,165,020,973,792
5. Step 5: Solve for x
   x = 6,211,165,020,973,792/91,178,443.72
6. Step 6: Final answer
   x = 68,120,980.88