Finding the Fourth Proportional to 231,003,805, 318,785,250.90 and 133,218,661

Step by Step Solution

1. Step 1: Write the proportion equation
   231,003,805 : 318,785,250.90 = 133,218,661 : x
2. Step 2: Convert to fraction form
   231,003,805/318,785,250.90 = 133,218,661/x
3. Step 3: Cross multiply
   231,003,805x = 318,785,250.90 × 133,218,661
4. Step 4: Simplify right side
   231,003,805x = 42,468,144,271,447,040
5. Step 5: Solve for x
   x = 42,468,144,271,447,040/231,003,805
6. Step 6: Final answer
   x = 183,841,752.18