Finding the Fourth Proportional to 249,359.08, 374,087.40 and 91,588.72

Step by Step Solution

1. Step 1: Write the proportion equation
   249,359.08 : 374,087.40 = 91,588.72 : x
2. Step 2: Convert to fraction form
   249,359.08/374,087.40 = 91,588.72/x
3. Step 3: Cross multiply
   249,359.08x = 374,087.40 × 91,588.72
4. Step 4: Simplify right side
   249,359.08x = 34,262,186,134.13
5. Step 5: Solve for x
   x = 34,262,186,134.13/249,359.08
6. Step 6: Final answer
   x = 137,401.00