Finding the Fourth Proportional to 98,630.33, 147,946.58 and 28,510.25

Step by Step Solution

1. Step 1: Write the proportion equation
   98,630.33 : 147,946.58 = 28,510.25 : x
2. Step 2: Convert to fraction form
   98,630.33/147,946.58 = 28,510.25/x
3. Step 3: Cross multiply
   98,630.33x = 147,946.58 × 28,510.25
4. Step 4: Simplify right side
   98,630.33x = 4,217,993,839.89
5. Step 5: Solve for x
   x = 4,217,993,839.89/98,630.33
6. Step 6: Final answer
   x = 42,765.69