Finding the Fourth Proportional to 79,157.83, 109,237.98 and 42,859.66

Step by Step Solution

1. Step 1: Write the proportion equation
   79,157.83 : 109,237.98 = 42,859.66 : x
2. Step 2: Convert to fraction form
   79,157.83/109,237.98 = 42,859.66/x
3. Step 3: Cross multiply
   79,157.83x = 109,237.98 × 42,859.66
4. Step 4: Simplify right side
   79,157.83x = 4,681,902,681.89
5. Step 5: Solve for x
   x = 4,681,902,681.89/79,157.83
6. Step 6: Final answer
   x = 59,146.43