Finding the Fourth Proportional to 72,585.76, 108,688.56 and 47,547.04

Step by Step Solution

1. Step 1: Write the proportion equation
   72,585.76 : 108,688.56 = 47,547.04 : x
2. Step 2: Convert to fraction form
   72,585.76/108,688.56 = 47,547.04/x
3. Step 3: Cross multiply
   72,585.76x = 108,688.56 × 47,547.04
4. Step 4: Simplify right side
   72,585.76x = 5,167,819,309.86
5. Step 5: Solve for x
   x = 5,167,819,309.86/72,585.76
6. Step 6: Final answer
   x = 71,196.05