Finding the Fourth Proportional to 42,886.16, 64,309.24 and 22,890.25

Step by Step Solution

1. Step 1: Write the proportion equation
   42,886.16 : 64,309.24 = 22,890.25 : x
2. Step 2: Convert to fraction form
   42,886.16/64,309.24 = 22,890.25/x
3. Step 3: Cross multiply
   42,886.16x = 64,309.24 × 22,890.25
4. Step 4: Simplify right side
   42,886.16x = 1,472,054,328.17
5. Step 5: Solve for x
   x = 1,472,054,328.17/42,886.16
6. Step 6: Final answer
   x = 34,324.70