Finding the Fourth Proportional to 56,990,042.29, 78,646,325.61 and 30,884,559.97

Step by Step Solution

1. Step 1: Write the proportion equation
   56,990,042.29 : 78,646,325.61 = 30,884,559.97 : x
2. Step 2: Convert to fraction form
   56,990,042.29/78,646,325.61 = 30,884,559.97/x
3. Step 3: Cross multiply
   56,990,042.29x = 78,646,325.61 × 30,884,559.97
4. Step 4: Simplify right side
   56,990,042.29x = 2,428,957,159,722,191.50
5. Step 5: Solve for x
   x = 2,428,957,159,722,191.50/56,990,042.29
6. Step 6: Final answer
   x = 42,620,729.20