Finding the Fourth Proportional to 105,123.36, 157,601.32 and 60,699.72

Step by Step Solution

1. Step 1: Write the proportion equation
   105,123.36 : 157,601.32 = 60,699.72 : x
2. Step 2: Convert to fraction form
   105,123.36/157,601.32 = 60,699.72/x
3. Step 3: Cross multiply
   105,123.36x = 157,601.32 × 60,699.72
4. Step 4: Simplify right side
   105,123.36x = 9,566,355,995.63
5. Step 5: Solve for x
   x = 9,566,355,995.63/105,123.36
6. Step 6: Final answer
   x = 91,001.24