Finding the Fourth Proportional to 94,655.28, 141,979.80 and 38,478.72

Step by Step Solution

1. Step 1: Write the proportion equation
   94,655.28 : 141,979.80 = 38,478.72 : x
2. Step 2: Convert to fraction form
   94,655.28/141,979.80 = 38,478.72/x
3. Step 3: Cross multiply
   94,655.28x = 141,979.80 × 38,478.72
4. Step 4: Simplify right side
   94,655.28x = 5,463,200,969.86
5. Step 5: Solve for x
   x = 5,463,200,969.86/94,655.28
6. Step 6: Final answer
   x = 57,716.81