Finding the Fourth Proportional to 510,935,875.98, 705,091,399.83 and 275,986,538.88

Step by Step Solution

1. Step 1: Write the proportion equation
   510,935,875.98 : 705,091,399.83 = 275,986,538.88 : x
2. Step 2: Convert to fraction form
   510,935,875.98/705,091,399.83 = 275,986,538.88/x
3. Step 3: Cross multiply
   510,935,875.98x = 705,091,399.83 × 275,986,538.88
4. Step 4: Simplify right side
   510,935,875.98x = 194,595,735,033,135,936
5. Step 5: Solve for x
   x = 194,595,735,033,135,936/510,935,875.98
6. Step 6: Final answer
   x = 380,861,364.76