Finding the Fourth Proportional to 116,820.06, 161,211.60 and 63,105.09

Step by Step Solution

1. Step 1: Write the proportion equation
   116,820.06 : 161,211.60 = 63,105.09 : x
2. Step 2: Convert to fraction form
   116,820.06/161,211.60 = 63,105.09/x
3. Step 3: Cross multiply
   116,820.06x = 161,211.60 × 63,105.09
4. Step 4: Simplify right side
   116,820.06x = 10,173,272,527.04
5. Step 5: Solve for x
   x = 10,173,272,527.04/116,820.06
6. Step 6: Final answer
   x = 87,084.98