Finding the Fourth Proportional to 123,783.99, 185,646.12 and 57,160.08

Step by Step Solution

1. Step 1: Write the proportion equation
   123,783.99 : 185,646.12 = 57,160.08 : x
2. Step 2: Convert to fraction form
   123,783.99/185,646.12 = 57,160.08/x
3. Step 3: Cross multiply
   123,783.99x = 185,646.12 × 57,160.08
4. Step 4: Simplify right side
   123,783.99x = 10,611,547,070.89
5. Step 5: Solve for x
   x = 10,611,547,070.89/123,783.99
6. Step 6: Final answer
   x = 85,726.33