Finding the Fourth Proportional to 2,185,885,877.58, 3,278,061,631.49 and 611,570,136.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,185,885,877.58 : 3,278,061,631.49 = 611,570,136.59 : x
2. Step 2: Convert to fraction form
   2,185,885,877.58/3,278,061,631.49 = 611,570,136.59/x
3. Step 3: Cross multiply
   2,185,885,877.58x = 3,278,061,631.49 × 611,570,136.59
4. Step 4: Simplify right side
   2,185,885,877.58x = 2,004,764,599,701,329,664
5. Step 5: Solve for x
   x = 2,004,764,599,701,329,664/2,185,885,877.58
6. Step 6: Final answer
   x = 917,140,560.84