Finding the Fourth Proportional to 156,443.14, 216,069.72 and 106,054.66

Step by Step Solution

1. Step 1: Write the proportion equation
   156,443.14 : 216,069.72 = 106,054.66 : x
2. Step 2: Convert to fraction form
   156,443.14/216,069.72 = 106,054.66/x
3. Step 3: Cross multiply
   156,443.14x = 216,069.72 × 106,054.66
4. Step 4: Simplify right side
   156,443.14x = 22,915,200,690.90
5. Step 5: Solve for x
   x = 22,915,200,690.90/156,443.14
6. Step 6: Final answer
   x = 146,476.23