Finding the Fourth Proportional to 91,788.22, 137,554.18 and 49,577.30

Step by Step Solution

1. Step 1: Write the proportion equation
   91,788.22 : 137,554.18 = 49,577.30 : x
2. Step 2: Convert to fraction form
   91,788.22/137,554.18 = 49,577.30/x
3. Step 3: Cross multiply
   91,788.22x = 137,554.18 × 49,577.30
4. Step 4: Simplify right side
   91,788.22x = 6,819,564,036.40
5. Step 5: Solve for x
   x = 6,819,564,036.40/91,788.22
6. Step 6: Final answer
   x = 74,296.73