Finding the Fourth Proportional to 78,460.90, 108,275.96 and 42,651.16

Step by Step Solution

1. Step 1: Write the proportion equation
   78,460.90 : 108,275.96 = 42,651.16 : x
2. Step 2: Convert to fraction form
   78,460.90/108,275.96 = 42,651.16/x
3. Step 3: Cross multiply
   78,460.90x = 108,275.96 × 42,651.16
4. Step 4: Simplify right side
   78,460.90x = 4,618,094,890.14
5. Step 5: Solve for x
   x = 4,618,094,890.14/78,460.90
6. Step 6: Final answer
   x = 58,858.55