Finding the Fourth Proportional to 69,238.53, 103,861.94 and 21,855.15

Step by Step Solution

1. Step 1: Write the proportion equation
   69,238.53 : 103,861.94 = 21,855.15 : x
2. Step 2: Convert to fraction form
   69,238.53/103,861.94 = 21,855.15/x
3. Step 3: Cross multiply
   69,238.53x = 103,861.94 × 21,855.15
4. Step 4: Simplify right side
   69,238.53x = 2,269,918,168.72
5. Step 5: Solve for x
   x = 2,269,918,168.72/69,238.53
6. Step 6: Final answer
   x = 32,784.03