Finding the Fourth Proportional to 2,128,473,196.37, 2,936,867,007.88 and 1,188,531,214.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,128,473,196.37 : 2,936,867,007.88 = 1,188,531,214.37 : x
2. Step 2: Convert to fraction form
   2,128,473,196.37/2,936,867,007.88 = 1,188,531,214.37/x
3. Step 3: Cross multiply
   2,128,473,196.37x = 2,936,867,007.88 × 1,188,531,214.37
4. Step 4: Simplify right side
   2,128,473,196.37x = 3,490,558,111,318,804,480
5. Step 5: Solve for x
   x = 3,490,558,111,318,804,480/2,128,473,196.37
6. Step 6: Final answer
   x = 1,639,935,197.34