Finding the Fourth Proportional to 1,405,825,928.16, 2,107,252,123.82 and 519,941,972.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,405,825,928.16 : 2,107,252,123.82 = 519,941,972.50 : x
2. Step 2: Convert to fraction form
   1,405,825,928.16/2,107,252,123.82 = 519,941,972.50/x
3. Step 3: Cross multiply
   1,405,825,928.16x = 2,107,252,123.82 × 519,941,972.50
4. Step 4: Simplify right side
   1,405,825,928.16x = 1,095,648,825,807,945,088
5. Step 5: Solve for x
   x = 1,095,648,825,807,945,088/1,405,825,928.16
6. Step 6: Final answer
   x = 779,363,080.35