Finding the Fourth Proportional to 249,518.86, 374,426.52 and 91,858.03

Step by Step Solution

1. Step 1: Write the proportion equation
   249,518.86 : 374,426.52 = 91,858.03 : x
2. Step 2: Convert to fraction form
   249,518.86/374,426.52 = 91,858.03/x
3. Step 3: Cross multiply
   249,518.86x = 374,426.52 × 91,858.03
4. Step 4: Simplify right side
   249,518.86x = 34,394,082,506.96
5. Step 5: Solve for x
   x = 34,394,082,506.96/249,518.86
6. Step 6: Final answer
   x = 137,841.61