Finding the Fourth Proportional to 72,717.56, 108,881.82 and 42,707.08

Step by Step Solution

1. Step 1: Write the proportion equation
   72,717.56 : 108,881.82 = 42,707.08 : x
2. Step 2: Convert to fraction form
   72,717.56/108,881.82 = 42,707.08/x
3. Step 3: Cross multiply
   72,717.56x = 108,881.82 × 42,707.08
4. Step 4: Simplify right side
   72,717.56x = 4,650,024,597.29
5. Step 5: Solve for x
   x = 4,650,024,597.29/72,717.56
6. Step 6: Final answer
   x = 63,946.38