Finding the Fourth Proportional to 47,087.86, 64,993.58 and 29,172.69

Step by Step Solution

1. Step 1: Write the proportion equation
   47,087.86 : 64,993.58 = 29,172.69 : x
2. Step 2: Convert to fraction form
   47,087.86/64,993.58 = 29,172.69/x
3. Step 3: Cross multiply
   47,087.86x = 64,993.58 × 29,172.69
4. Step 4: Simplify right side
   47,087.86x = 1,896,037,090.50
5. Step 5: Solve for x
   x = 1,896,037,090.50/47,087.86
6. Step 6: Final answer
   x = 40,265.94