Finding the Fourth Proportional to 72,358.38, 99,854.86 and 42,164.42

Step by Step Solution

1. Step 1: Write the proportion equation
   72,358.38 : 99,854.86 = 42,164.42 : x
2. Step 2: Convert to fraction form
   72,358.38/99,854.86 = 42,164.42/x
3. Step 3: Cross multiply
   72,358.38x = 99,854.86 × 42,164.42
4. Step 4: Simplify right side
   72,358.38x = 4,210,322,256.08
5. Step 5: Solve for x
   x = 4,210,322,256.08/72,358.38
6. Step 6: Final answer
   x = 58,187.07