Finding the Fourth Proportional to 173,216,665.50, 259,825,332.72 and 42,058,388.10

Step by Step Solution

1. Step 1: Write the proportion equation
   173,216,665.50 : 259,825,332.72 = 42,058,388.10 : x
2. Step 2: Convert to fraction form
   173,216,665.50/259,825,332.72 = 42,058,388.10/x
3. Step 3: Cross multiply
   173,216,665.50x = 259,825,332.72 × 42,058,388.10
4. Step 4: Simplify right side
   173,216,665.50x = 10,927,834,681,749,388
5. Step 5: Solve for x
   x = 10,927,834,681,749,388/173,216,665.50
6. Step 6: Final answer
   x = 63,087,663.36