Finding the Fourth Proportional to 12,126,484,147.86, 18,196,238,146.95 and 5,048,852,998.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,126,484,147.86 : 18,196,238,146.95 = 5,048,852,998.50 : x
2. Step 2: Convert to fraction form
   12,126,484,147.86/18,196,238,146.95 = 5,048,852,998.50/x
3. Step 3: Cross multiply
   12,126,484,147.86x = 18,196,238,146.95 × 5,048,852,998.50
4. Step 4: Simplify right side
   12,126,484,147.86x = 91,870,131,529,648,603,136
5. Step 5: Solve for x
   x = 91,870,131,529,648,603,136/12,126,484,147.86
6. Step 6: Final answer
   x = 7,575,990,733.13