Finding the Fourth Proportional to 370,801, 556,218.78 and 108,145

Step by Step Solution

1. Step 1: Write the proportion equation
   370,801 : 556,218.78 = 108,145 : x
2. Step 2: Convert to fraction form
   370,801/556,218.78 = 108,145/x
3. Step 3: Cross multiply
   370,801x = 556,218.78 × 108,145
4. Step 4: Simplify right side
   370,801x = 60,152,279,963.10
5. Step 5: Solve for x
   x = 60,152,279,963.10/370,801
6. Step 6: Final answer
   x = 162,222.54