Finding the Fourth Proportional to 103,100.55, 142,347.30 and 79,184.49

Step by Step Solution

1. Step 1: Write the proportion equation
   103,100.55 : 142,347.30 = 79,184.49 : x
2. Step 2: Convert to fraction form
   103,100.55/142,347.30 = 79,184.49/x
3. Step 3: Cross multiply
   103,100.55x = 142,347.30 × 79,184.49
4. Step 4: Simplify right side
   103,100.55x = 11,271,698,353.38
5. Step 5: Solve for x
   x = 11,271,698,353.38/103,100.55
6. Step 6: Final answer
   x = 109,327.24