Finding the Fourth Proportional to 51,064.30, 70,467.72 and 28,402.81

Step by Step Solution

1. Step 1: Write the proportion equation
   51,064.30 : 70,467.72 = 28,402.81 : x
2. Step 2: Convert to fraction form
   51,064.30/70,467.72 = 28,402.81/x
3. Step 3: Cross multiply
   51,064.30x = 70,467.72 × 28,402.81
4. Step 4: Simplify right side
   51,064.30x = 2,001,480,979.61
5. Step 5: Solve for x
   x = 2,001,480,979.61/51,064.30
6. Step 6: Final answer
   x = 39,195.31