Finding the Fourth Proportional to 249,016.68, 373,670.82 and 91,256.22

Step by Step Solution

1. Step 1: Write the proportion equation
   249,016.68 : 373,670.82 = 91,256.22 : x
2. Step 2: Convert to fraction form
   249,016.68/373,670.82 = 91,256.22/x
3. Step 3: Cross multiply
   249,016.68x = 373,670.82 × 91,256.22
4. Step 4: Simplify right side
   249,016.68x = 34,099,786,557.50
5. Step 5: Solve for x
   x = 34,099,786,557.50/249,016.68
6. Step 6: Final answer
   x = 136,937.76