Finding the Fourth Proportional to 194,025.88, 290,437.32 and 105,058.72

Step by Step Solution

1. Step 1: Write the proportion equation
   194,025.88 : 290,437.32 = 105,058.72 : x
2. Step 2: Convert to fraction form
   194,025.88/290,437.32 = 105,058.72/x
3. Step 3: Cross multiply
   194,025.88x = 290,437.32 × 105,058.72
4. Step 4: Simplify right side
   194,025.88x = 30,512,973,079.43
5. Step 5: Solve for x
   x = 30,512,973,079.43/194,025.88
6. Step 6: Final answer
   x = 157,262.39