Finding the Fourth Proportional to 78,445.81, 108,256.06 and 42,635.83

Step by Step Solution

1. Step 1: Write the proportion equation
   78,445.81 : 108,256.06 = 42,635.83 : x
2. Step 2: Convert to fraction form
   78,445.81/108,256.06 = 42,635.83/x
3. Step 3: Cross multiply
   78,445.81x = 108,256.06 × 42,635.83
4. Step 4: Simplify right side
   78,445.81x = 4,615,586,970.63
5. Step 5: Solve for x
   x = 4,615,586,970.63/78,445.81
6. Step 6: Final answer
   x = 58,837.90