Finding the Fourth Proportional to 314,288.19, 471,447.86 and 89,681.72

Step by Step Solution

1. Step 1: Write the proportion equation
   314,288.19 : 471,447.86 = 89,681.72 : x
2. Step 2: Convert to fraction form
   314,288.19/471,447.86 = 89,681.72/x
3. Step 3: Cross multiply
   314,288.19x = 471,447.86 × 89,681.72
4. Step 4: Simplify right side
   314,288.19x = 42,280,252,169.47
5. Step 5: Solve for x
   x = 42,280,252,169.47/314,288.19
6. Step 6: Final answer
   x = 134,527.02