Finding the Fourth Proportional to 47,085.79, 64,978.86 and 25,575.74

Step by Step Solution

1. Step 1: Write the proportion equation
   47,085.79 : 64,978.86 = 25,575.74 : x
2. Step 2: Convert to fraction form
   47,085.79/64,978.86 = 25,575.74/x
3. Step 3: Cross multiply
   47,085.79x = 64,978.86 × 25,575.74
4. Step 4: Simplify right side
   47,085.79x = 1,661,882,428.86
5. Step 5: Solve for x
   x = 1,661,882,428.86/47,085.79
6. Step 6: Final answer
   x = 35,294.78