Finding the Fourth Proportional to 42,976.18, 64,340.06 and 25,152.58

Step by Step Solution

1. Step 1: Write the proportion equation
   42,976.18 : 64,340.06 = 25,152.58 : x
2. Step 2: Convert to fraction form
   42,976.18/64,340.06 = 25,152.58/x
3. Step 3: Cross multiply
   42,976.18x = 64,340.06 × 25,152.58
4. Step 4: Simplify right side
   42,976.18x = 1,618,318,506.35
5. Step 5: Solve for x
   x = 1,618,318,506.35/42,976.18
6. Step 6: Final answer
   x = 37,656.17