Finding the Fourth Proportional to 12,730,478,940.53, 17,567,269,366.42 and 7,014,443,491.77

Step by Step Solution

1. Step 1: Write the proportion equation
   12,730,478,940.53 : 17,567,269,366.42 = 7,014,443,491.77 : x
2. Step 2: Convert to fraction form
   12,730,478,940.53/17,567,269,366.42 = 7,014,443,491.77/x
3. Step 3: Cross multiply
   12,730,478,940.53x = 17,567,269,366.42 × 7,014,443,491.77
4. Step 4: Simplify right side
   12,730,478,940.53x = 123,224,618,275,392,012,288
5. Step 5: Solve for x
   x = 123,224,618,275,392,012,288/12,730,478,940.53
6. Step 6: Final answer
   x = 9,679,495,865.87