Finding the Fourth Proportional to 65,239.76, 90,029.31 and 38,384.00

Step by Step Solution

1. Step 1: Write the proportion equation
   65,239.76 : 90,029.31 = 38,384.00 : x
2. Step 2: Convert to fraction form
   65,239.76/90,029.31 = 38,384.00/x
3. Step 3: Cross multiply
   65,239.76x = 90,029.31 × 38,384.00
4. Step 4: Simplify right side
   65,239.76x = 3,455,684,584.89
5. Step 5: Solve for x
   x = 3,455,684,584.89/65,239.76
6. Step 6: Final answer
   x = 52,969.00