Finding the Fourth Proportional to 56,119, 77,445.84 and 30,970.12

Step by Step Solution

1. Step 1: Write the proportion equation
   56,119 : 77,445.84 = 30,970.12 : x
2. Step 2: Convert to fraction form
   56,119/77,445.84 = 30,970.12/x
3. Step 3: Cross multiply
   56,119x = 77,445.84 × 30,970.12
4. Step 4: Simplify right side
   56,119x = 2,398,506,958.30
5. Step 5: Solve for x
   x = 2,398,506,958.30/56,119
6. Step 6: Final answer
   x = 42,739.66