Finding the Fourth Proportional to 2,107,866,333.28, 2,907,901,685.94 and 1,272,223,780.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,107,866,333.28 : 2,907,901,685.94 = 1,272,223,780.96 : x
2. Step 2: Convert to fraction form
   2,107,866,333.28/2,907,901,685.94 = 1,272,223,780.96/x
3. Step 3: Cross multiply
   2,107,866,333.28x = 2,907,901,685.94 × 1,272,223,780.96
4. Step 4: Simplify right side
   2,107,866,333.28x = 3,699,501,677,546,545,664
5. Step 5: Solve for x
   x = 3,699,501,677,546,545,664/2,107,866,333.28
6. Step 6: Final answer
   x = 1,755,093,109.62