Finding the Fourth Proportional to 113,641.45, 156,924.35 and 71,273.05

Step by Step Solution

1. Step 1: Write the proportion equation
   113,641.45 : 156,924.35 = 71,273.05 : x
2. Step 2: Convert to fraction form
   113,641.45/156,924.35 = 71,273.05/x
3. Step 3: Cross multiply
   113,641.45x = 156,924.35 × 71,273.05
4. Step 4: Simplify right side
   113,641.45x = 11,184,477,043.77
5. Step 5: Solve for x
   x = 11,184,477,043.77/113,641.45
6. Step 6: Final answer
   x = 98,418.99