Finding the Fourth Proportional to 78,116,403.46, 117,092,581.68 and 26,283,012.21

Step by Step Solution

1. Step 1: Write the proportion equation
   78,116,403.46 : 117,092,581.68 = 26,283,012.21 : x
2. Step 2: Convert to fraction form
   78,116,403.46/117,092,581.68 = 26,283,012.21/x
3. Step 3: Cross multiply
   78,116,403.46x = 117,092,581.68 × 26,283,012.21
4. Step 4: Simplify right side
   78,116,403.46x = 3,077,545,753,410,399.50
5. Step 5: Solve for x
   x = 3,077,545,753,410,399.50/78,116,403.46
6. Step 6: Final answer
   x = 39,396,920.71