Finding the Fourth Proportional to 258,530,061.77, 356,881,570.35 and 173,806,317.37

Step by Step Solution

1. Step 1: Write the proportion equation
   258,530,061.77 : 356,881,570.35 = 173,806,317.37 : x
2. Step 2: Convert to fraction form
   258,530,061.77/356,881,570.35 = 173,806,317.37/x
3. Step 3: Cross multiply
   258,530,061.77x = 356,881,570.35 × 173,806,317.37
4. Step 4: Simplify right side
   258,530,061.77x = 62,028,271,478,863,888
5. Step 5: Solve for x
   x = 62,028,271,478,863,888/258,530,061.77
6. Step 6: Final answer
   x = 239,926,726.72