Finding the Fourth Proportional to 328,519.00, 492,779.31 and 91,861.30

Step by Step Solution

1. Step 1: Write the proportion equation
   328,519.00 : 492,779.31 = 91,861.30 : x
2. Step 2: Convert to fraction form
   328,519.00/492,779.31 = 91,861.30/x
3. Step 3: Cross multiply
   328,519.00x = 492,779.31 × 91,861.30
4. Step 4: Simplify right side
   328,519.00x = 45,267,345,106.50
5. Step 5: Solve for x
   x = 45,267,345,106.50/328,519.00
6. Step 6: Final answer
   x = 137,792.17