Finding the Fourth Proportional to 91,875.30, 137,785.56 and 35,724.12

Step by Step Solution

1. Step 1: Write the proportion equation
   91,875.30 : 137,785.56 = 35,724.12 : x
2. Step 2: Convert to fraction form
   91,875.30/137,785.56 = 35,724.12/x
3. Step 3: Cross multiply
   91,875.30x = 137,785.56 × 35,724.12
4. Step 4: Simplify right side
   91,875.30x = 4,922,267,879.71
5. Step 5: Solve for x
   x = 4,922,267,879.71/91,875.30
6. Step 6: Final answer
   x = 53,575.53