Finding the Fourth Proportional to 110,573.52, 165,617.16 and 91,380.63

Step by Step Solution

1. Step 1: Write the proportion equation
   110,573.52 : 165,617.16 = 91,380.63 : x
2. Step 2: Convert to fraction form
   110,573.52/165,617.16 = 91,380.63/x
3. Step 3: Cross multiply
   110,573.52x = 165,617.16 × 91,380.63
4. Step 4: Simplify right side
   110,573.52x = 15,134,200,419.61
5. Step 5: Solve for x
   x = 15,134,200,419.61/110,573.52
6. Step 6: Final answer
   x = 136,870.02