Finding the Fourth Proportional to 51,164.19, 70,587.86 and 31,006.53

Step by Step Solution

1. Step 1: Write the proportion equation
   51,164.19 : 70,587.86 = 31,006.53 : x
2. Step 2: Convert to fraction form
   51,164.19/70,587.86 = 31,006.53/x
3. Step 3: Cross multiply
   51,164.19x = 70,587.86 × 31,006.53
4. Step 4: Simplify right side
   51,164.19x = 2,188,684,443.69
5. Step 5: Solve for x
   x = 2,188,684,443.69/51,164.19
6. Step 6: Final answer
   x = 42,777.66