Finding the Fourth Proportional to 189,196.72, 283,786.88 and 47,039.02

Step by Step Solution

1. Step 1: Write the proportion equation
   189,196.72 : 283,786.88 = 47,039.02 : x
2. Step 2: Convert to fraction form
   189,196.72/283,786.88 = 47,039.02/x
3. Step 3: Cross multiply
   189,196.72x = 283,786.88 × 47,039.02
4. Step 4: Simplify right side
   189,196.72x = 13,349,055,779.40
5. Step 5: Solve for x
   x = 13,349,055,779.40/189,196.72
6. Step 6: Final answer
   x = 70,556.49