Finding the Fourth Proportional to 77,602, 107,090.76 and 42,274

Step by Step Solution

1. Step 1: Write the proportion equation
   77,602 : 107,090.76 = 42,274 : x
2. Step 2: Convert to fraction form
   77,602/107,090.76 = 42,274/x
3. Step 3: Cross multiply
   77,602x = 107,090.76 × 42,274
4. Step 4: Simplify right side
   77,602x = 4,527,154,788.24
5. Step 5: Solve for x
   x = 4,527,154,788.24/77,602
6. Step 6: Final answer
   x = 58,338.12