Finding the Fourth Proportional to 78,326.67, 108,090.87 and 42,516.66

Step by Step Solution

1. Step 1: Write the proportion equation
   78,326.67 : 108,090.87 = 42,516.66 : x
2. Step 2: Convert to fraction form
   78,326.67/108,090.87 = 42,516.66/x
3. Step 3: Cross multiply
   78,326.67x = 108,090.87 × 42,516.66
4. Step 4: Simplify right side
   78,326.67x = 4,595,662,768.89
5. Step 5: Solve for x
   x = 4,595,662,768.89/78,326.67
6. Step 6: Final answer
   x = 58,673.03