Finding the Fourth Proportional to 12,947,364.48, 17,873,409.60 and 7,513,806.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,947,364.48 : 17,873,409.60 = 7,513,806.72 : x
2. Step 2: Convert to fraction form
   12,947,364.48/17,873,409.60 = 7,513,806.72/x
3. Step 3: Cross multiply
   12,947,364.48x = 17,873,409.60 × 7,513,806.72
4. Step 4: Simplify right side
   12,947,364.48x = 134,297,345,161,792.52
5. Step 5: Solve for x
   x = 134,297,345,161,792.52/12,947,364.48
6. Step 6: Final answer
   x = 10,372,562.34