Finding the Fourth Proportional to 124,499,037.15, 171,823,243.61 and 103,554,117.50

Step by Step Solution

1. Step 1: Write the proportion equation
   124,499,037.15 : 171,823,243.61 = 103,554,117.50 : x
2. Step 2: Convert to fraction form
   124,499,037.15/171,823,243.61 = 103,554,117.50/x
3. Step 3: Cross multiply
   124,499,037.15x = 171,823,243.61 × 103,554,117.50
4. Step 4: Simplify right side
   124,499,037.15x = 17,793,004,357,420,836
5. Step 5: Solve for x
   x = 17,793,004,357,420,836/124,499,037.15
6. Step 6: Final answer
   x = 142,916,802.93