Finding the Fourth Proportional to 307,693.55, 461,459.88 and 91,494.06

Step by Step Solution

1. Step 1: Write the proportion equation
   307,693.55 : 461,459.88 = 91,494.06 : x
2. Step 2: Convert to fraction form
   307,693.55/461,459.88 = 91,494.06/x
3. Step 3: Cross multiply
   307,693.55x = 461,459.88 × 91,494.06
4. Step 4: Simplify right side
   307,693.55x = 42,220,837,948.31
5. Step 5: Solve for x
   x = 42,220,837,948.31/307,693.55
6. Step 6: Final answer
   x = 137,217.17