Finding the Fourth Proportional to 249,043.17, 373,342.86 and 91,234.71

Step by Step Solution

1. Step 1: Write the proportion equation
   249,043.17 : 373,342.86 = 91,234.71 : x
2. Step 2: Convert to fraction form
   249,043.17/373,342.86 = 91,234.71/x
3. Step 3: Cross multiply
   249,043.17x = 373,342.86 × 91,234.71
4. Step 4: Simplify right side
   249,043.17x = 34,061,827,562.67
5. Step 5: Solve for x
   x = 34,061,827,562.67/249,043.17
6. Step 6: Final answer
   x = 136,770.78