Finding the Fourth Proportional to 72,298.32, 108,251.73 and 51,151.38

Step by Step Solution

1. Step 1: Write the proportion equation
   72,298.32 : 108,251.73 = 51,151.38 : x
2. Step 2: Convert to fraction form
   72,298.32/108,251.73 = 51,151.38/x
3. Step 3: Cross multiply
   72,298.32x = 108,251.73 × 51,151.38
4. Step 4: Simplify right side
   72,298.32x = 5,537,225,376.89
5. Step 5: Solve for x
   x = 5,537,225,376.89/72,298.32
6. Step 6: Final answer
   x = 76,588.58