Finding the Fourth Proportional to 72,238.38, 108,357.57 and 47,435.10

Step by Step Solution

1. Step 1: Write the proportion equation
   72,238.38 : 108,357.57 = 47,435.10 : x
2. Step 2: Convert to fraction form
   72,238.38/108,357.57 = 47,435.10/x
3. Step 3: Cross multiply
   72,238.38x = 108,357.57 × 47,435.10
4. Step 4: Simplify right side
   72,238.38x = 5,139,952,168.71
5. Step 5: Solve for x
   x = 5,139,952,168.71/72,238.38
6. Step 6: Final answer
   x = 71,152.65