Finding the Fourth Proportional to 64,592,836.09, 89,153,074.86 and 42,570,249.10

Step by Step Solution

1. Step 1: Write the proportion equation
   64,592,836.09 : 89,153,074.86 = 42,570,249.10 : x
2. Step 2: Convert to fraction form
   64,592,836.09/89,153,074.86 = 42,570,249.10/x
3. Step 3: Cross multiply
   64,592,836.09x = 89,153,074.86 × 42,570,249.10
4. Step 4: Simplify right side
   64,592,836.09x = 3,795,268,604,821,147.50
5. Step 5: Solve for x
   x = 3,795,268,604,821,147.50/64,592,836.09
6. Step 6: Final answer
   x = 58,756,803.92