Finding the Fourth Proportional to 258,530,061.02, 356,881,569.31 and 173,806,316.62

Step by Step Solution

1. Step 1: Write the proportion equation
   258,530,061.02 : 356,881,569.31 = 173,806,316.62 : x
2. Step 2: Convert to fraction form
   258,530,061.02/356,881,569.31 = 173,806,316.62/x
3. Step 3: Cross multiply
   258,530,061.02x = 356,881,569.31 × 173,806,316.62
4. Step 4: Simplify right side
   258,530,061.02x = 62,028,271,031,905,824
5. Step 5: Solve for x
   x = 62,028,271,031,905,824/258,530,061.02
6. Step 6: Final answer
   x = 239,926,725.68