Finding the Fourth Proportional to 55,309,691.20, 83,014,728.45 and 28,034,958.10

Step by Step Solution

1. Step 1: Write the proportion equation
   55,309,691.20 : 83,014,728.45 = 28,034,958.10 : x
2. Step 2: Convert to fraction form
   55,309,691.20/83,014,728.45 = 28,034,958.10/x
3. Step 3: Cross multiply
   55,309,691.20x = 83,014,728.45 × 28,034,958.10
4. Step 4: Simplify right side
   55,309,691.20x = 2,327,314,433,778,628
5. Step 5: Solve for x
   x = 2,327,314,433,778,628/55,309,691.20
6. Step 6: Final answer
   x = 42,077,877.91