Finding the Fourth Proportional to 12,947,722.50, 19,422,516.87 and 4,969,546.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,947,722.50 : 19,422,516.87 = 4,969,546.50 : x
2. Step 2: Convert to fraction form
   12,947,722.50/19,422,516.87 = 4,969,546.50/x
3. Step 3: Cross multiply
   12,947,722.50x = 19,422,516.87 × 4,969,546.50
4. Step 4: Simplify right side
   12,947,722.50x = 96,521,100,732,499.45
5. Step 5: Solve for x
   x = 96,521,100,732,499.45/12,947,722.50
6. Step 6: Final answer
   x = 7,454,677.90