Finding the Fourth Proportional to 175,359.18, 262,944.72 and 91,034.40

Step by Step Solution

1. Step 1: Write the proportion equation
   175,359.18 : 262,944.72 = 91,034.40 : x
2. Step 2: Convert to fraction form
   175,359.18/262,944.72 = 91,034.40/x
3. Step 3: Cross multiply
   175,359.18x = 262,944.72 × 91,034.40
4. Step 4: Simplify right side
   175,359.18x = 23,937,014,818.37
5. Step 5: Solve for x
   x = 23,937,014,818.37/175,359.18
6. Step 6: Final answer
   x = 136,502.78