Finding the Fourth Proportional to 64,117.89, 96,187.91 and 28,591.83

Step by Step Solution

1. Step 1: Write the proportion equation
   64,117.89 : 96,187.91 = 28,591.83 : x
2. Step 2: Convert to fraction form
   64,117.89/96,187.91 = 28,591.83/x
3. Step 3: Cross multiply
   64,117.89x = 96,187.91 × 28,591.83
4. Step 4: Simplify right side
   64,117.89x = 2,750,188,227.82
5. Step 5: Solve for x
   x = 2,750,188,227.82/64,117.89
6. Step 6: Final answer
   x = 42,892.68