Finding the Fourth Proportional to 105,037.30, 157,709.55 and 74,010.10

Step by Step Solution

1. Step 1: Write the proportion equation
   105,037.30 : 157,709.55 = 74,010.10 : x
2. Step 2: Convert to fraction form
   105,037.30/157,709.55 = 74,010.10/x
3. Step 3: Cross multiply
   105,037.30x = 157,709.55 × 74,010.10
4. Step 4: Simplify right side
   105,037.30x = 11,672,099,566.46
5. Step 5: Solve for x
   x = 11,672,099,566.46/105,037.30
6. Step 6: Final answer
   x = 111,123.38