Finding the Fourth Proportional to 2,518,455,654.72, 3,475,473,441.12 and 1,404,693,537.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,518,455,654.72 : 3,475,473,441.12 = 1,404,693,537.12 : x
2. Step 2: Convert to fraction form
   2,518,455,654.72/3,475,473,441.12 = 1,404,693,537.12/x
3. Step 3: Cross multiply
   2,518,455,654.72x = 3,475,473,441.12 × 1,404,693,537.12
4. Step 4: Simplify right side
   2,518,455,654.72x = 4,881,975,081,173,470,208
5. Step 5: Solve for x
   x = 4,881,975,081,173,470,208/2,518,455,654.72
6. Step 6: Final answer
   x = 1,938,479,667.90