Finding the Fourth Proportional to 146,507.72, 202,181.87 and 79,439.72

Step by Step Solution

1. Step 1: Write the proportion equation
   146,507.72 : 202,181.87 = 79,439.72 : x
2. Step 2: Convert to fraction form
   146,507.72/202,181.87 = 79,439.72/x
3. Step 3: Cross multiply
   146,507.72x = 202,181.87 × 79,439.72
4. Step 4: Simplify right side
   146,507.72x = 16,061,269,733.77
5. Step 5: Solve for x
   x = 16,061,269,733.77/146,507.72
6. Step 6: Final answer
   x = 109,627.47