Finding the Fourth Proportional to 113,466.16, 156,604.29 and 65,719.49

Step by Step Solution

1. Step 1: Write the proportion equation
   113,466.16 : 156,604.29 = 65,719.49 : x
2. Step 2: Convert to fraction form
   113,466.16/156,604.29 = 65,719.49/x
3. Step 3: Cross multiply
   113,466.16x = 156,604.29 × 65,719.49
4. Step 4: Simplify right side
   113,466.16x = 10,291,954,070.61
5. Step 5: Solve for x
   x = 10,291,954,070.61/113,466.16
6. Step 6: Final answer
   x = 90,705.05