Finding the Fourth Proportional to 1,359,921,510.70, 2,040,386,150.85 and 542,620,365.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,359,921,510.70 : 2,040,386,150.85 = 542,620,365.10 : x
2. Step 2: Convert to fraction form
   1,359,921,510.70/2,040,386,150.85 = 542,620,365.10/x
3. Step 3: Cross multiply
   1,359,921,510.70x = 2,040,386,150.85 × 542,620,365.10
4. Step 4: Simplify right side
   1,359,921,510.70x = 1,107,155,078,119,210,624
5. Step 5: Solve for x
   x = 1,107,155,078,119,210,624/1,359,921,510.70
6. Step 6: Final answer
   x = 814,131,602.01