Finding the Fourth Proportional to 124,499,018.12, 171,823,218.18 and 103,554,098.60

Step by Step Solution

1. Step 1: Write the proportion equation
   124,499,018.12 : 171,823,218.18 = 103,554,098.60 : x
2. Step 2: Convert to fraction form
   124,499,018.12/171,823,218.18 = 103,554,098.60/x
3. Step 3: Cross multiply
   124,499,018.12x = 171,823,218.18 × 103,554,098.60
4. Step 4: Simplify right side
   124,499,018.12x = 17,792,998,477,181,032
5. Step 5: Solve for x
   x = 17,792,998,477,181,032/124,499,018.12
6. Step 6: Final answer
   x = 142,916,777.54