Finding the Fourth Proportional to 47,010.79, 64,870.99 and 25,790.05

Step by Step Solution

1. Step 1: Write the proportion equation
   47,010.79 : 64,870.99 = 25,790.05 : x
2. Step 2: Convert to fraction form
   47,010.79/64,870.99 = 25,790.05/x
3. Step 3: Cross multiply
   47,010.79x = 64,870.99 × 25,790.05
4. Step 4: Simplify right side
   47,010.79x = 1,673,026,237.33
5. Step 5: Solve for x
   x = 1,673,026,237.33/47,010.79
6. Step 6: Final answer
   x = 35,588.14