Finding the Fourth Proportional to 1,837,955,069.12, 2,756,956,595.20 and 611,123,520.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,837,955,069.12 : 2,756,956,595.20 = 611,123,520.72 : x
2. Step 2: Convert to fraction form
   1,837,955,069.12/2,756,956,595.20 = 611,123,520.72/x
3. Step 3: Cross multiply
   1,837,955,069.12x = 2,756,956,595.20 × 611,123,520.72
4. Step 4: Simplify right side
   1,837,955,069.12x = 1,684,841,020,930,847,744
5. Step 5: Solve for x
   x = 1,684,841,020,930,847,744/1,837,955,069.12
6. Step 6: Final answer
   x = 916,693,258.31