Finding the Fourth Proportional to 1,036,253,695.98, 1,555,079,937.76 and 405,907,566.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,036,253,695.98 : 1,555,079,937.76 = 405,907,566.72 : x
2. Step 2: Convert to fraction form
   1,036,253,695.98/1,555,079,937.76 = 405,907,566.72/x
3. Step 3: Cross multiply
   1,036,253,695.98x = 1,555,079,937.76 × 405,907,566.72
4. Step 4: Simplify right side
   1,036,253,695.98x = 631,218,713,591,250,688
5. Step 5: Solve for x
   x = 631,218,713,591,250,688/1,036,253,695.98
6. Step 6: Final answer
   x = 609,135,307.35