Finding the Fourth Proportional to 113,818.64, 170,746.48 and 42,746.81

Step by Step Solution

1. Step 1: Write the proportion equation
   113,818.64 : 170,746.48 = 42,746.81 : x
2. Step 2: Convert to fraction form
   113,818.64/170,746.48 = 42,746.81/x
3. Step 3: Cross multiply
   113,818.64x = 170,746.48 × 42,746.81
4. Step 4: Simplify right side
   113,818.64x = 7,298,866,538.43
5. Step 5: Solve for x
   x = 7,298,866,538.43/113,818.64
6. Step 6: Final answer
   x = 64,127.17