Finding the Fourth Proportional to 65,432.78, 90,298.04 and 38,573.67

Step by Step Solution

1. Step 1: Write the proportion equation
   65,432.78 : 90,298.04 = 38,573.67 : x
2. Step 2: Convert to fraction form
   65,432.78/90,298.04 = 38,573.67/x
3. Step 3: Cross multiply
   65,432.78x = 90,298.04 × 38,573.67
4. Step 4: Simplify right side
   65,432.78x = 3,483,126,796.61
5. Step 5: Solve for x
   x = 3,483,126,796.61/65,432.78
6. Step 6: Final answer
   x = 53,232.14