Finding the Fourth Proportional to 2,505,891,173.51, 3,756,499,996.29 and 846,638,077.13

Step by Step Solution

1. Step 1: Write the proportion equation
   2,505,891,173.51 : 3,756,499,996.29 = 846,638,077.13 : x
2. Step 2: Convert to fraction form
   2,505,891,173.51/3,756,499,996.29 = 846,638,077.13/x
3. Step 3: Cross multiply
   2,505,891,173.51x = 3,756,499,996.29 × 846,638,077.13
4. Step 4: Simplify right side
   2,505,891,173.51x = 3,180,395,933,579,035,136
5. Step 5: Solve for x
   x = 3,180,395,933,579,035,136/2,505,891,173.51
6. Step 6: Final answer
   x = 1,269,167,618.77