Finding the Fourth Proportional to 89,749.33, 134,648.94 and 39,152.78

Step by Step Solution

1. Step 1: Write the proportion equation
   89,749.33 : 134,648.94 = 39,152.78 : x
2. Step 2: Convert to fraction form
   89,749.33/134,648.94 = 39,152.78/x
3. Step 3: Cross multiply
   89,749.33x = 134,648.94 × 39,152.78
4. Step 4: Simplify right side
   89,749.33x = 5,271,880,156.74
5. Step 5: Solve for x
   x = 5,271,880,156.74/89,749.33
6. Step 6: Final answer
   x = 58,740.05