Finding the Fourth Proportional to 51,061.30, 70,464.03 and 28,400.14

Step by Step Solution

1. Step 1: Write the proportion equation
   51,061.30 : 70,464.03 = 28,400.14 : x
2. Step 2: Convert to fraction form
   51,061.30/70,464.03 = 28,400.14/x
3. Step 3: Cross multiply
   51,061.30x = 70,464.03 × 28,400.14
4. Step 4: Simplify right side
   51,061.30x = 2,001,188,316.96
5. Step 5: Solve for x
   x = 2,001,188,316.96/51,061.30
6. Step 6: Final answer
   x = 39,191.88