Finding the Fourth Proportional to 64,982,830.86, 89,624,650.23 and 55,225,574.10

Step by Step Solution

1. Step 1: Write the proportion equation
   64,982,830.86 : 89,624,650.23 = 55,225,574.10 : x
2. Step 2: Convert to fraction form
   64,982,830.86/89,624,650.23 = 55,225,574.10/x
3. Step 3: Cross multiply
   64,982,830.86x = 89,624,650.23 × 55,225,574.10
4. Step 4: Simplify right side
   64,982,830.86x = 4,949,572,762,463,447
5. Step 5: Solve for x
   x = 4,949,572,762,463,447/64,982,830.86
6. Step 6: Final answer
   x = 76,167,392.17