Finding the Fourth Proportional to 12,379,185,558.39, 18,533,908,492.43 and 11,123,943,174.03

Step by Step Solution

1. Step 1: Write the proportion equation
   12,379,185,558.39 : 18,533,908,492.43 = 11,123,943,174.03 : x
2. Step 2: Convert to fraction form
   12,379,185,558.39/18,533,908,492.43 = 11,123,943,174.03/x
3. Step 3: Cross multiply
   12,379,185,558.39x = 18,533,908,492.43 × 11,123,943,174.03
4. Step 4: Simplify right side
   12,379,185,558.39x = 206,170,144,862,348,443,648
5. Step 5: Solve for x
   x = 206,170,144,862,348,443,648/12,379,185,558.39
6. Step 6: Final answer
   x = 16,654,580,698.38