Finding the Fourth Proportional to 79,019.55, 109,038.78 and 47,184.12

Step by Step Solution

1. Step 1: Write the proportion equation
   79,019.55 : 109,038.78 = 47,184.12 : x
2. Step 2: Convert to fraction form
   79,019.55/109,038.78 = 47,184.12/x
3. Step 3: Cross multiply
   79,019.55x = 109,038.78 × 47,184.12
4. Step 4: Simplify right side
   79,019.55x = 5,144,898,880.17
5. Step 5: Solve for x
   x = 5,144,898,880.17/79,019.55
6. Step 6: Final answer
   x = 65,109.19