Finding the Fourth Proportional to 51,300.59, 70,824.24 and 39,105.32

Step by Step Solution

1. Step 1: Write the proportion equation
   51,300.59 : 70,824.24 = 39,105.32 : x
2. Step 2: Convert to fraction form
   51,300.59/70,824.24 = 39,105.32/x
3. Step 3: Cross multiply
   51,300.59x = 70,824.24 × 39,105.32
4. Step 4: Simplify right side
   51,300.59x = 2,769,604,214.84
5. Step 5: Solve for x
   x = 2,769,604,214.84/51,300.59
6. Step 6: Final answer
   x = 53,987.77