Finding the Fourth Proportional to 83,041,402.78, 124,565,565.39 and 28,491,510.12

Step by Step Solution

1. Step 1: Write the proportion equation
   83,041,402.78 : 124,565,565.39 = 28,491,510.12 : x
2. Step 2: Convert to fraction form
   83,041,402.78/124,565,565.39 = 28,491,510.12/x
3. Step 3: Cross multiply
   83,041,402.78x = 124,565,565.39 × 28,491,510.12
4. Step 4: Simplify right side
   83,041,402.78x = 3,549,061,066,912,707
5. Step 5: Solve for x
   x = 3,549,061,066,912,707/83,041,402.78
6. Step 6: Final answer
   x = 42,738,452.72