Finding the Fourth Proportional to 117,075.36, 161,429.33 and 86,492.72

Step by Step Solution

1. Step 1: Write the proportion equation
   117,075.36 : 161,429.33 = 86,492.72 : x
2. Step 2: Convert to fraction form
   117,075.36/161,429.33 = 86,492.72/x
3. Step 3: Cross multiply
   117,075.36x = 161,429.33 × 86,492.72
4. Step 4: Simplify right side
   117,075.36x = 13,962,460,599.87
5. Step 5: Solve for x
   x = 13,962,460,599.87/117,075.36
6. Step 6: Final answer
   x = 119,260.45