Finding the Fourth Proportional to 142,925.31, 197,238.24 and 79,261.74

Step by Step Solution

1. Step 1: Write the proportion equation
   142,925.31 : 197,238.24 = 79,261.74 : x
2. Step 2: Convert to fraction form
   142,925.31/197,238.24 = 79,261.74/x
3. Step 3: Cross multiply
   142,925.31x = 197,238.24 × 79,261.74
4. Step 4: Simplify right side
   142,925.31x = 15,633,446,096.94
5. Step 5: Solve for x
   x = 15,633,446,096.94/142,925.31
6. Step 6: Final answer
   x = 109,381.93