Finding the Fourth Proportional to 167,782.32, 231,536.61 and 91,298.81

Step by Step Solution

1. Step 1: Write the proportion equation
   167,782.32 : 231,536.61 = 91,298.81 : x
2. Step 2: Convert to fraction form
   167,782.32/231,536.61 = 91,298.81/x
3. Step 3: Cross multiply
   167,782.32x = 231,536.61 × 91,298.81
4. Step 4: Simplify right side
   167,782.32x = 21,139,017,543.28
5. Step 5: Solve for x
   x = 21,139,017,543.28/167,782.32
6. Step 6: Final answer
   x = 125,990.73