Finding the Fourth Proportional to 72,308.96, 108,463.52 and 47,505.60

Step by Step Solution

1. Step 1: Write the proportion equation
   72,308.96 : 108,463.52 = 47,505.60 : x
2. Step 2: Convert to fraction form
   72,308.96/108,463.52 = 47,505.60/x
3. Step 3: Cross multiply
   72,308.96x = 108,463.52 × 47,505.60
4. Step 4: Simplify right side
   72,308.96x = 5,152,624,595.71
5. Step 5: Solve for x
   x = 5,152,624,595.71/72,308.96
6. Step 6: Final answer
   x = 71,258.45