Finding the Fourth Proportional to 773,196,002.76, 1,159,902,952.92 and 248,389,128.72

Step by Step Solution

1. Step 1: Write the proportion equation
   773,196,002.76 : 1,159,902,952.92 = 248,389,128.72 : x
2. Step 2: Convert to fraction form
   773,196,002.76/1,159,902,952.92 = 248,389,128.72/x
3. Step 3: Cross multiply
   773,196,002.76x = 1,159,902,952.92 × 248,389,128.72
4. Step 4: Simplify right side
   773,196,002.76x = 288,107,283,875,553,984
5. Step 5: Solve for x
   x = 288,107,283,875,553,984/773,196,002.76
6. Step 6: Final answer
   x = 372,618,692.86