Finding the Fourth Proportional to 64,960,229.07, 89,615,066.58 and 57,525,467.88

Step by Step Solution

1. Step 1: Write the proportion equation
   64,960,229.07 : 89,615,066.58 = 57,525,467.88 : x
2. Step 2: Convert to fraction form
   64,960,229.07/89,615,066.58 = 57,525,467.88/x
3. Step 3: Cross multiply
   64,960,229.07x = 89,615,066.58 × 57,525,467.88
4. Step 4: Simplify right side
   64,960,229.07x = 5,155,148,634,111,852
5. Step 5: Solve for x
   x = 5,155,148,634,111,852/64,960,229.07
6. Step 6: Final answer
   x = 79,358,535.34