Finding the Fourth Proportional to 81,748.72, 122,467.56 and 46,581.76

Step by Step Solution

1. Step 1: Write the proportion equation
   81,748.72 : 122,467.56 = 46,581.76 : x
2. Step 2: Convert to fraction form
   81,748.72/122,467.56 = 46,581.76/x
3. Step 3: Cross multiply
   81,748.72x = 122,467.56 × 46,581.76
4. Step 4: Simplify right side
   81,748.72x = 5,704,754,487.71
5. Step 5: Solve for x
   x = 5,704,754,487.71/81,748.72
6. Step 6: Final answer
   x = 69,784.02