Finding the Fourth Proportional to 123,553,555.97, 170,583,777.83 and 76,560,495.53

Step by Step Solution

1. Step 1: Write the proportion equation
   123,553,555.97 : 170,583,777.83 = 76,560,495.53 : x
2. Step 2: Convert to fraction form
   123,553,555.97/170,583,777.83 = 76,560,495.53/x
3. Step 3: Cross multiply
   123,553,555.97x = 170,583,777.83 × 76,560,495.53
4. Step 4: Simplify right side
   123,553,555.97x = 13,059,978,559,382,712
5. Step 5: Solve for x
   x = 13,059,978,559,382,712/123,553,555.97
6. Step 6: Final answer
   x = 105,702,975.99