Finding the Fourth Proportional to 249,559, 374,113.86 and 91,753.72

Step by Step Solution

1. Step 1: Write the proportion equation
   249,559 : 374,113.86 = 91,753.72 : x
2. Step 2: Convert to fraction form
   249,559/374,113.86 = 91,753.72/x
3. Step 3: Cross multiply
   249,559x = 374,113.86 × 91,753.72
4. Step 4: Simplify right side
   249,559x = 34,326,338,358.56
5. Step 5: Solve for x
   x = 34,326,338,358.56/249,559
6. Step 6: Final answer
   x = 137,547.99