Finding the Fourth Proportional to 78,513.42, 108,345.38 and 42,703.46

Step by Step Solution

1. Step 1: Write the proportion equation
   78,513.42 : 108,345.38 = 42,703.46 : x
2. Step 2: Convert to fraction form
   78,513.42/108,345.38 = 42,703.46/x
3. Step 3: Cross multiply
   78,513.42x = 108,345.38 × 42,703.46
4. Step 4: Simplify right side
   78,513.42x = 4,626,722,601.01
5. Step 5: Solve for x
   x = 4,626,722,601.01/78,513.42
6. Step 6: Final answer
   x = 58,929.07