Finding the Fourth Proportional to 191,335.55, 263,954.69 and 123,374.34

Step by Step Solution

1. Step 1: Write the proportion equation
   191,335.55 : 263,954.69 = 123,374.34 : x
2. Step 2: Convert to fraction form
   191,335.55/263,954.69 = 123,374.34/x
3. Step 3: Cross multiply
   191,335.55x = 263,954.69 × 123,374.34
4. Step 4: Simplify right side
   191,335.55x = 32,565,235,051.78
5. Step 5: Solve for x
   x = 32,565,235,051.78/191,335.55
6. Step 6: Final answer
   x = 170,199.61