Finding the Fourth Proportional to 12,509,665,977.27, 17,263,676,172 and 7,360,072,909.54

Step by Step Solution

1. Step 1: Write the proportion equation
   12,509,665,977.27 : 17,263,676,172 = 7,360,072,909.54 : x
2. Step 2: Convert to fraction form
   12,509,665,977.27/17,263,676,172 = 7,360,072,909.54/x
3. Step 3: Cross multiply
   12,509,665,977.27x = 17,263,676,172 × 7,360,072,909.54
4. Step 4: Simplify right side
   12,509,665,977.27x = 127,061,915,312,608,411,648
5. Step 5: Solve for x
   x = 127,061,915,312,608,411,648/12,509,665,977.27
6. Step 6: Final answer
   x = 10,157,098,961.99