Finding the Fourth Proportional to 39,300.50, 58,961.56 and 11,598.50

Step by Step Solution

1. Step 1: Write the proportion equation
   39,300.50 : 58,961.56 = 11,598.50 : x
2. Step 2: Convert to fraction form
   39,300.50/58,961.56 = 11,598.50/x
3. Step 3: Cross multiply
   39,300.50x = 58,961.56 × 11,598.50
4. Step 4: Simplify right side
   39,300.50x = 683,865,653.66
5. Step 5: Solve for x
   x = 683,865,653.66/39,300.50
6. Step 6: Final answer
   x = 17,400.94