Finding the Fourth Proportional to 51,039.32, 70,417.40 and 30,888.54

Step by Step Solution

1. Step 1: Write the proportion equation
   51,039.32 : 70,417.40 = 30,888.54 : x
2. Step 2: Convert to fraction form
   51,039.32/70,417.40 = 30,888.54/x
3. Step 3: Cross multiply
   51,039.32x = 70,417.40 × 30,888.54
4. Step 4: Simplify right side
   51,039.32x = 2,175,090,522.15
5. Step 5: Solve for x
   x = 2,175,090,522.15/51,039.32
6. Step 6: Final answer
   x = 42,615.98