Finding the Fourth Proportional to 149,066.60, 223,470.30 and 89,839.40

Step by Step Solution

1. Step 1: Write the proportion equation
   149,066.60 : 223,470.30 = 89,839.40 : x
2. Step 2: Convert to fraction form
   149,066.60/223,470.30 = 89,839.40/x
3. Step 3: Cross multiply
   149,066.60x = 223,470.30 × 89,839.40
4. Step 4: Simplify right side
   149,066.60x = 20,076,437,669.82
5. Step 5: Solve for x
   x = 20,076,437,669.82/149,066.60
6. Step 6: Final answer
   x = 134,680.99