Finding the Fourth Proportional to 249,100.58, 373,710.16 and 80,620.91

Step by Step Solution

1. Step 1: Write the proportion equation
   249,100.58 : 373,710.16 = 80,620.91 : x
2. Step 2: Convert to fraction form
   249,100.58/373,710.16 = 80,620.91/x
3. Step 3: Cross multiply
   249,100.58x = 373,710.16 × 80,620.91
4. Step 4: Simplify right side
   249,100.58x = 30,128,852,039.62
5. Step 5: Solve for x
   x = 30,128,852,039.62/249,100.58
6. Step 6: Final answer
   x = 120,950.55