Finding the Fourth Proportional to 106,019.17, 158,910.24 and 45,978.32

Step by Step Solution

1. Step 1: Write the proportion equation
   106,019.17 : 158,910.24 = 45,978.32 : x
2. Step 2: Convert to fraction form
   106,019.17/158,910.24 = 45,978.32/x
3. Step 3: Cross multiply
   106,019.17x = 158,910.24 × 45,978.32
4. Step 4: Simplify right side
   106,019.17x = 7,306,425,866.00
5. Step 5: Solve for x
   x = 7,306,425,866.00/106,019.17
6. Step 6: Final answer
   x = 68,916.08