Finding the Fourth Proportional to 78,379.01, 108,163.81 and 42,569.72

Step by Step Solution

1. Step 1: Write the proportion equation
   78,379.01 : 108,163.81 = 42,569.72 : x
2. Step 2: Convert to fraction form
   78,379.01/108,163.81 = 42,569.72/x
3. Step 3: Cross multiply
   78,379.01x = 108,163.81 × 42,569.72
4. Step 4: Simplify right side
   78,379.01x = 4,604,502,458.59
5. Step 5: Solve for x
   x = 4,604,502,458.59/78,379.01
6. Step 6: Final answer
   x = 58,746.63