Finding the Fourth Proportional to 86,969.31, 120,259.23 and 69,033.18

Step by Step Solution

1. Step 1: Write the proportion equation
   86,969.31 : 120,259.23 = 69,033.18 : x
2. Step 2: Convert to fraction form
   86,969.31/120,259.23 = 69,033.18/x
3. Step 3: Cross multiply
   86,969.31x = 120,259.23 × 69,033.18
4. Step 4: Simplify right side
   86,969.31x = 8,301,877,071.25
5. Step 5: Solve for x
   x = 8,301,877,071.25/86,969.31
6. Step 6: Final answer
   x = 95,457.55