Finding the Fourth Proportional to 65,788,105.13, 90,759,086.55 and 39,668,112.12

Step by Step Solution

1. Step 1: Write the proportion equation
   65,788,105.13 : 90,759,086.55 = 39,668,112.12 : x
2. Step 2: Convert to fraction form
   65,788,105.13/90,759,086.55 = 39,668,112.12/x
3. Step 3: Cross multiply
   65,788,105.13x = 90,759,086.55 × 39,668,112.12
4. Step 4: Simplify right side
   65,788,105.13x = 3,600,241,621,514,530.50
5. Step 5: Solve for x
   x = 3,600,241,621,514,530.50/65,788,105.13
6. Step 6: Final answer
   x = 54,724,811.03