Finding the Fourth Proportional to 78,066.86, 107,732.16 and 42,256.82

Step by Step Solution

1. Step 1: Write the proportion equation
   78,066.86 : 107,732.16 = 42,256.82 : x
2. Step 2: Convert to fraction form
   78,066.86/107,732.16 = 42,256.82/x
3. Step 3: Cross multiply
   78,066.86x = 107,732.16 × 42,256.82
4. Step 4: Simplify right side
   78,066.86x = 4,552,418,762.66
5. Step 5: Solve for x
   x = 4,552,418,762.66/78,066.86
6. Step 6: Final answer
   x = 58,314.36