Finding the Fourth Proportional to 69,176.96, 103,569.60 and 53,774.72

Step by Step Solution

1. Step 1: Write the proportion equation
   69,176.96 : 103,569.60 = 53,774.72 : x
2. Step 2: Convert to fraction form
   69,176.96/103,569.60 = 53,774.72/x
3. Step 3: Cross multiply
   69,176.96x = 103,569.60 × 53,774.72
4. Step 4: Simplify right side
   69,176.96x = 5,569,426,240.51
5. Step 5: Solve for x
   x = 5,569,426,240.51/69,176.96
6. Step 6: Final answer
   x = 80,509.84