Finding the Fourth Proportional to 193,989.60, 290,983.86 and 60,870.42

Step by Step Solution

1. Step 1: Write the proportion equation
   193,989.60 : 290,983.86 = 60,870.42 : x
2. Step 2: Convert to fraction form
   193,989.60/290,983.86 = 60,870.42/x
3. Step 3: Cross multiply
   193,989.60x = 290,983.86 × 60,870.42
4. Step 4: Simplify right side
   193,989.60x = 17,712,309,771.42
5. Step 5: Solve for x
   x = 17,712,309,771.42/193,989.60
6. Step 6: Final answer
   x = 91,305.46