Finding the Fourth Proportional to 230,870.76, 346,165.98 and 90,461.16

Step by Step Solution

1. Step 1: Write the proportion equation
   230,870.76 : 346,165.98 = 90,461.16 : x
2. Step 2: Convert to fraction form
   230,870.76/346,165.98 = 90,461.16/x
3. Step 3: Cross multiply
   230,870.76x = 346,165.98 × 90,461.16
4. Step 4: Simplify right side
   230,870.76x = 31,314,576,103.34
5. Step 5: Solve for x
   x = 31,314,576,103.34/230,870.76
6. Step 6: Final answer
   x = 135,636.82