Finding the Fourth Proportional to 172,045, 258,089.37 and 47,386

Step by Step Solution

1. Step 1: Write the proportion equation
   172,045 : 258,089.37 = 47,386 : x
2. Step 2: Convert to fraction form
   172,045/258,089.37 = 47,386/x
3. Step 3: Cross multiply
   172,045x = 258,089.37 × 47,386
4. Step 4: Simplify right side
   172,045x = 12,229,822,886.82
5. Step 5: Solve for x
   x = 12,229,822,886.82/172,045
6. Step 6: Final answer
   x = 71,085.02