Finding the Fourth Proportional to 107,109.18, 147,640.16 and 84,411.77

Step by Step Solution

1. Step 1: Write the proportion equation
   107,109.18 : 147,640.16 = 84,411.77 : x
2. Step 2: Convert to fraction form
   107,109.18/147,640.16 = 84,411.77/x
3. Step 3: Cross multiply
   107,109.18x = 147,640.16 × 84,411.77
4. Step 4: Simplify right side
   107,109.18x = 12,462,566,648.55
5. Step 5: Solve for x
   x = 12,462,566,648.55/107,109.18
6. Step 6: Final answer
   x = 116,353.86