Finding the Fourth Proportional to 12,947,562, 17,867,635.56 and 7,224,426

Step by Step Solution

1. Step 1: Write the proportion equation
   12,947,562 : 17,867,635.56 = 7,224,426 : x
2. Step 2: Convert to fraction form
   12,947,562/17,867,635.56 = 7,224,426/x
3. Step 3: Cross multiply
   12,947,562x = 17,867,635.56 × 7,224,426
4. Step 4: Simplify right side
   12,947,562x = 129,083,410,898,188.55
5. Step 5: Solve for x
   x = 129,083,410,898,188.55/12,947,562
6. Step 6: Final answer
   x = 9,969,707.88