Finding the Fourth Proportional to 149,863.89, 224,906.74 and 70,978.31

Step by Step Solution

1. Step 1: Write the proportion equation
   149,863.89 : 224,906.74 = 70,978.31 : x
2. Step 2: Convert to fraction form
   149,863.89/224,906.74 = 70,978.31/x
3. Step 3: Cross multiply
   149,863.89x = 224,906.74 × 70,978.31
4. Step 4: Simplify right side
   149,863.89x = 15,963,500,312.81
5. Step 5: Solve for x
   x = 15,963,500,312.81/149,863.89
6. Step 6: Final answer
   x = 106,519.99