Finding the Fourth Proportional to 72,636.48, 109,137.96 and 69,684.16

Step by Step Solution

1. Step 1: Write the proportion equation
   72,636.48 : 109,137.96 = 69,684.16 : x
2. Step 2: Convert to fraction form
   72,636.48/109,137.96 = 69,684.16/x
3. Step 3: Cross multiply
   72,636.48x = 109,137.96 × 69,684.16
4. Step 4: Simplify right side
   72,636.48x = 7,605,187,066.71
5. Step 5: Solve for x
   x = 7,605,187,066.71/72,636.48
6. Step 6: Final answer
   x = 104,702.03