Finding the Fourth Proportional to 74,730.36, 103,164.72 and 51,777.59

Step by Step Solution

1. Step 1: Write the proportion equation
   74,730.36 : 103,164.72 = 51,777.59 : x
2. Step 2: Convert to fraction form
   74,730.36/103,164.72 = 51,777.59/x
3. Step 3: Cross multiply
   74,730.36x = 103,164.72 × 51,777.59
4. Step 4: Simplify right side
   74,730.36x = 5,341,620,251.50
5. Step 5: Solve for x
   x = 5,341,620,251.50/74,730.36
6. Step 6: Final answer
   x = 71,478.58