Finding the Fourth Proportional to 318,987.55, 478,574.88 and 94,353.89

Step by Step Solution

1. Step 1: Write the proportion equation
   318,987.55 : 478,574.88 = 94,353.89 : x
2. Step 2: Convert to fraction form
   318,987.55/478,574.88 = 94,353.89/x
3. Step 3: Cross multiply
   318,987.55x = 478,574.88 × 94,353.89
4. Step 4: Simplify right side
   318,987.55x = 45,155,401,112.51
5. Step 5: Solve for x
   x = 45,155,401,112.51/318,987.55
6. Step 6: Final answer
   x = 141,558.51