Finding the Fourth Proportional to 194,686.62, 291,985.89 and 89,404.38

Step by Step Solution

1. Step 1: Write the proportion equation
   194,686.62 : 291,985.89 = 89,404.38 : x
2. Step 2: Convert to fraction form
   194,686.62/291,985.89 = 89,404.38/x
3. Step 3: Cross multiply
   194,686.62x = 291,985.89 × 89,404.38
4. Step 4: Simplify right side
   194,686.62x = 26,104,817,464.20
5. Step 5: Solve for x
   x = 26,104,817,464.20/194,686.62
6. Step 6: Final answer
   x = 134,086.35