Finding the Fourth Proportional to 7,123,450.72, 10,685,026.23 and 1,732,128.79

Step by Step Solution

1. Step 1: Write the proportion equation
   7,123,450.72 : 10,685,026.23 = 1,732,128.79 : x
2. Step 2: Convert to fraction form
   7,123,450.72/10,685,026.23 = 1,732,128.79/x
3. Step 3: Cross multiply
   7,123,450.72x = 10,685,026.23 × 1,732,128.79
4. Step 4: Simplify right side
   7,123,450.72x = 18,507,841,554,888.16
5. Step 5: Solve for x
   x = 18,507,841,554,888.16/7,123,450.72
6. Step 6: Final answer
   x = 2,598,156.75