Finding the Fourth Proportional to 91,629.64, 138,068.59 and 75,354.16

Step by Step Solution

1. Step 1: Write the proportion equation
   91,629.64 : 138,068.59 = 75,354.16 : x
2. Step 2: Convert to fraction form
   91,629.64/138,068.59 = 75,354.16/x
3. Step 3: Cross multiply
   91,629.64x = 138,068.59 × 75,354.16
4. Step 4: Simplify right side
   91,629.64x = 10,404,042,621.83
5. Step 5: Solve for x
   x = 10,404,042,621.83/91,629.64
6. Step 6: Final answer
   x = 113,544.51