Finding the Fourth Proportional to 400,518.71, 600,830.37 and 147,976.10

Step by Step Solution

1. Step 1: Write the proportion equation
   400,518.71 : 600,830.37 = 147,976.10 : x
2. Step 2: Convert to fraction form
   400,518.71/600,830.37 = 147,976.10/x
3. Step 3: Cross multiply
   400,518.71x = 600,830.37 × 147,976.10
4. Step 4: Simplify right side
   400,518.71x = 88,908,531,910.01
5. Step 5: Solve for x
   x = 88,908,531,910.01/400,518.71
6. Step 6: Final answer
   x = 221,983.47