Finding the Fourth Proportional to 31,557,075.18, 43,545,446.20 and 18,323,665.30

Step by Step Solution

1. Step 1: Write the proportion equation
   31,557,075.18 : 43,545,446.20 = 18,323,665.30 : x
2. Step 2: Convert to fraction form
   31,557,075.18/43,545,446.20 = 18,323,665.30/x
3. Step 3: Cross multiply
   31,557,075.18x = 43,545,446.20 × 18,323,665.30
4. Step 4: Simplify right side
   31,557,075.18x = 797,912,181,507,957
5. Step 5: Solve for x
   x = 797,912,181,507,957/31,557,075.18
6. Step 6: Final answer
   x = 25,284,731.77