Finding the Fourth Proportional to 124,499,042.79, 171,823,251.39 and 103,554,123.12

Step by Step Solution

1. Step 1: Write the proportion equation
   124,499,042.79 : 171,823,251.39 = 103,554,123.12 : x
2. Step 2: Convert to fraction form
   124,499,042.79/171,823,251.39 = 103,554,123.12/x
3. Step 3: Cross multiply
   124,499,042.79x = 171,823,251.39 × 103,554,123.12
4. Step 4: Simplify right side
   124,499,042.79x = 17,793,006,129,318,770
5. Step 5: Solve for x
   x = 17,793,006,129,318,770/124,499,042.79
6. Step 6: Final answer
   x = 142,916,810.69