Finding the Fourth Proportional to 108,557.86, 149,743.52 and 71,764.06

Step by Step Solution

1. Step 1: Write the proportion equation
   108,557.86 : 149,743.52 = 71,764.06 : x
2. Step 2: Convert to fraction form
   108,557.86/149,743.52 = 71,764.06/x
3. Step 3: Cross multiply
   108,557.86x = 149,743.52 × 71,764.06
4. Step 4: Simplify right side
   108,557.86x = 10,746,202,953.89
5. Step 5: Solve for x
   x = 10,746,202,953.89/108,557.86
6. Step 6: Final answer
   x = 98,990.56