Finding the Fourth Proportional to 155,004.72, 213,881.02 and 91,333.86

Step by Step Solution

1. Step 1: Write the proportion equation
   155,004.72 : 213,881.02 = 91,333.86 : x
2. Step 2: Convert to fraction form
   155,004.72/213,881.02 = 91,333.86/x
3. Step 3: Cross multiply
   155,004.72x = 213,881.02 × 91,333.86
4. Step 4: Simplify right side
   155,004.72x = 19,534,579,137.34
5. Step 5: Solve for x
   x = 19,534,579,137.34/155,004.72
6. Step 6: Final answer
   x = 126,025.71