Finding the Fourth Proportional to 116,784.44, 161,129.18 and 65,779.34

Step by Step Solution

1. Step 1: Write the proportion equation
   116,784.44 : 161,129.18 = 65,779.34 : x
2. Step 2: Convert to fraction form
   116,784.44/161,129.18 = 65,779.34/x
3. Step 3: Cross multiply
   116,784.44x = 161,129.18 × 65,779.34
4. Step 4: Simplify right side
   116,784.44x = 10,598,969,980.60
5. Step 5: Solve for x
   x = 10,598,969,980.60/116,784.44
6. Step 6: Final answer
   x = 90,756.70