Finding the Fourth Proportional to 91,779.81, 137,669.71 and 32,617.81

Step by Step Solution

1. Step 1: Write the proportion equation
   91,779.81 : 137,669.71 = 32,617.81 : x
2. Step 2: Convert to fraction form
   91,779.81/137,669.71 = 32,617.81/x
3. Step 3: Cross multiply
   91,779.81x = 137,669.71 × 32,617.81
4. Step 4: Simplify right side
   91,779.81x = 4,490,484,443.54
5. Step 5: Solve for x
   x = 4,490,484,443.54/91,779.81
6. Step 6: Final answer
   x = 48,926.71