Finding the Fourth Proportional to 64,590.52, 89,130.74 and 37,740.60

Step by Step Solution

1. Step 1: Write the proportion equation
   64,590.52 : 89,130.74 = 37,740.60 : x
2. Step 2: Convert to fraction form
   64,590.52/89,130.74 = 37,740.60/x
3. Step 3: Cross multiply
   64,590.52x = 89,130.74 × 37,740.60
4. Step 4: Simplify right side
   64,590.52x = 3,363,847,606.04
5. Step 5: Solve for x
   x = 3,363,847,606.04/64,590.52
6. Step 6: Final answer
   x = 52,079.59