Finding the Fourth Proportional to 64,612.60, 89,152.31 and 37,749.91

Step by Step Solution

1. Step 1: Write the proportion equation
   64,612.60 : 89,152.31 = 37,749.91 : x
2. Step 2: Convert to fraction form
   64,612.60/89,152.31 = 37,749.91/x
3. Step 3: Cross multiply
   64,612.60x = 89,152.31 × 37,749.91
4. Step 4: Simplify right side
   64,612.60x = 3,365,491,678.79
5. Step 5: Solve for x
   x = 3,365,491,678.79/64,612.60
6. Step 6: Final answer
   x = 52,087.23