Finding the Fourth Proportional to 47,091.12, 64,985.94 and 25,870.80

Step by Step Solution

1. Step 1: Write the proportion equation
   47,091.12 : 64,985.94 = 25,870.80 : x
2. Step 2: Convert to fraction form
   47,091.12/64,985.94 = 25,870.80/x
3. Step 3: Cross multiply
   47,091.12x = 64,985.94 × 25,870.80
4. Step 4: Simplify right side
   47,091.12x = 1,681,238,256.55
5. Step 5: Solve for x
   x = 1,681,238,256.55/47,091.12
6. Step 6: Final answer
   x = 35,701.81