Finding the Fourth Proportional to 57,496,819.61, 79,345,196.33 and 31,391,337.21

Step by Step Solution

1. Step 1: Write the proportion equation
   57,496,819.61 : 79,345,196.33 = 31,391,337.21 : x
2. Step 2: Convert to fraction form
   57,496,819.61/79,345,196.33 = 31,391,337.21/x
3. Step 3: Cross multiply
   57,496,819.61x = 79,345,196.33 × 31,391,337.21
4. Step 4: Simplify right side
   57,496,819.61x = 2,490,751,813,534,183.50
5. Step 5: Solve for x
   x = 2,490,751,813,534,183.50/57,496,819.61
6. Step 6: Final answer
   x = 43,319,818.91