Finding the Fourth Proportional to 65,691.52, 90,631.76 and 37,006.72

Step by Step Solution

1. Step 1: Write the proportion equation
   65,691.52 : 90,631.76 = 37,006.72 : x
2. Step 2: Convert to fraction form
   65,691.52/90,631.76 = 37,006.72/x
3. Step 3: Cross multiply
   65,691.52x = 90,631.76 × 37,006.72
4. Step 4: Simplify right side
   65,691.52x = 3,353,984,165.43
5. Step 5: Solve for x
   x = 3,353,984,165.43/65,691.52
6. Step 6: Final answer
   x = 51,056.58