Finding the Fourth Proportional to 2,616,881,933.25, 3,925,357,090.61 and 870,084,669.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,616,881,933.25 : 3,925,357,090.61 = 870,084,669.87 : x
2. Step 2: Convert to fraction form
   2,616,881,933.25/3,925,357,090.61 = 870,084,669.87/x
3. Step 3: Cross multiply
   2,616,881,933.25x = 3,925,357,090.61 × 870,084,669.87
4. Step 4: Simplify right side
   2,616,881,933.25x = 3,415,393,028,300,915,200
5. Step 5: Solve for x
   x = 3,415,393,028,300,915,200/2,616,881,933.25
6. Step 6: Final answer
   x = 1,305,138,372.85