Finding the Fourth Proportional to 113,077.60, 156,059.48 and 64,684.04

Step by Step Solution

1. Step 1: Write the proportion equation
   113,077.60 : 156,059.48 = 64,684.04 : x
2. Step 2: Convert to fraction form
   113,077.60/156,059.48 = 64,684.04/x
3. Step 3: Cross multiply
   113,077.60x = 156,059.48 × 64,684.04
4. Step 4: Simplify right side
   113,077.60x = 10,094,557,646.70
5. Step 5: Solve for x
   x = 10,094,557,646.70/113,077.60
6. Step 6: Final answer
   x = 89,271.06