Finding the Fourth Proportional to 64,319.89, 88,761.72 and 37,480.81

Step by Step Solution

1. Step 1: Write the proportion equation
   64,319.89 : 88,761.72 = 37,480.81 : x
2. Step 2: Convert to fraction form
   64,319.89/88,761.72 = 37,480.81/x
3. Step 3: Cross multiply
   64,319.89x = 88,761.72 × 37,480.81
4. Step 4: Simplify right side
   64,319.89x = 3,326,861,162.59
5. Step 5: Solve for x
   x = 3,326,861,162.59/64,319.89
6. Step 6: Final answer
   x = 51,723.68