Finding the Fourth Proportional to 71,978,233.74, 107,970,423.30 and 28,268,465.10

Step by Step Solution

1. Step 1: Write the proportion equation
   71,978,233.74 : 107,970,423.30 = 28,268,465.10 : x
2. Step 2: Convert to fraction form
   71,978,233.74/107,970,423.30 = 28,268,465.10/x
3. Step 3: Cross multiply
   71,978,233.74x = 107,970,423.30 × 28,268,465.10
4. Step 4: Simplify right side
   71,978,233.74x = 3,052,158,142,888,277
5. Step 5: Solve for x
   x = 3,052,158,142,888,277/71,978,233.74
6. Step 6: Final answer
   x = 42,403,904.41