Finding the Fourth Proportional to 64,870.38, 89,521.12 and 35,062.38

Step by Step Solution

1. Step 1: Write the proportion equation
   64,870.38 : 89,521.12 = 35,062.38 : x
2. Step 2: Convert to fraction form
   64,870.38/89,521.12 = 35,062.38/x
3. Step 3: Cross multiply
   64,870.38x = 89,521.12 × 35,062.38
4. Step 4: Simplify right side
   64,870.38x = 3,138,823,079.86
5. Step 5: Solve for x
   x = 3,138,823,079.86/64,870.38
6. Step 6: Final answer
   x = 48,386.08