Finding the Fourth Proportional to 116,440.63, 160,705.08 and 65,457.56

Step by Step Solution

1. Step 1: Write the proportion equation
   116,440.63 : 160,705.08 = 65,457.56 : x
2. Step 2: Convert to fraction form
   116,440.63/160,705.08 = 65,457.56/x
3. Step 3: Cross multiply
   116,440.63x = 160,705.08 × 65,457.56
4. Step 4: Simplify right side
   116,440.63x = 10,519,362,818.17
5. Step 5: Solve for x
   x = 10,519,362,818.17/116,440.63
6. Step 6: Final answer
   x = 90,341.00