Finding the Fourth Proportional to 114,978.96, 172,461.24 and 42,917.81

Step by Step Solution

1. Step 1: Write the proportion equation
   114,978.96 : 172,461.24 = 42,917.81 : x
2. Step 2: Convert to fraction form
   114,978.96/172,461.24 = 42,917.81/x
3. Step 3: Cross multiply
   114,978.96x = 172,461.24 × 42,917.81
4. Step 4: Simplify right side
   114,978.96x = 7,401,657,868.38
5. Step 5: Solve for x
   x = 7,401,657,868.38/114,978.96
6. Step 6: Final answer
   x = 64,374.02