Finding the Fourth Proportional to 117,155.79, 175,697.31 and 42,266.17

Step by Step Solution

1. Step 1: Write the proportion equation
   117,155.79 : 175,697.31 = 42,266.17 : x
2. Step 2: Convert to fraction form
   117,155.79/175,697.31 = 42,266.17/x
3. Step 3: Cross multiply
   117,155.79x = 175,697.31 × 42,266.17
4. Step 4: Simplify right side
   117,155.79x = 7,426,052,373.00
5. Step 5: Solve for x
   x = 7,426,052,373.00/117,155.79
6. Step 6: Final answer
   x = 63,386.13