Finding the Fourth Proportional to 108,048.47, 148,928.42 and 72,225.41

Step by Step Solution

1. Step 1: Write the proportion equation
   108,048.47 : 148,928.42 = 72,225.41 : x
2. Step 2: Convert to fraction form
   108,048.47/148,928.42 = 72,225.41/x
3. Step 3: Cross multiply
   108,048.47x = 148,928.42 × 72,225.41
4. Step 4: Simplify right side
   108,048.47x = 10,756,415,631.07
5. Step 5: Solve for x
   x = 10,756,415,631.07/108,048.47
6. Step 6: Final answer
   x = 99,551.77