Finding the Fourth Proportional to 78,147, 107,842.91 and 42,337.26

Step by Step Solution

1. Step 1: Write the proportion equation
   78,147 : 107,842.91 = 42,337.26 : x
2. Step 2: Convert to fraction form
   78,147/107,842.91 = 42,337.26/x
3. Step 3: Cross multiply
   78,147x = 107,842.91 × 42,337.26
4. Step 4: Simplify right side
   78,147x = 4,565,773,108.14
5. Step 5: Solve for x
   x = 4,565,773,108.14/78,147
6. Step 6: Final answer
   x = 58,425.44