Finding the Fourth Proportional to 124,172,514.72, 171,361,955.68 and 71,258,902.72

Step by Step Solution

1. Step 1: Write the proportion equation
   124,172,514.72 : 171,361,955.68 = 71,258,902.72 : x
2. Step 2: Convert to fraction form
   124,172,514.72/171,361,955.68 = 71,258,902.72/x
3. Step 3: Cross multiply
   124,172,514.72x = 171,361,955.68 × 71,258,902.72
4. Step 4: Simplify right side
   124,172,514.72x = 12,211,064,929,710,072
5. Step 5: Solve for x
   x = 12,211,064,929,710,072/124,172,514.72
6. Step 6: Final answer
   x = 98,339,515.45