Finding the Fourth Proportional to 64,982,841.86, 89,624,665.32 and 55,225,585.10

Step by Step Solution

1. Step 1: Write the proportion equation
   64,982,841.86 : 89,624,665.32 = 55,225,585.10 : x
2. Step 2: Convert to fraction form
   64,982,841.86/89,624,665.32 = 55,225,585.10/x
3. Step 3: Cross multiply
   64,982,841.86x = 89,624,665.32 × 55,225,585.10
4. Step 4: Simplify right side
   64,982,841.86x = 4,949,574,581,688,678
5. Step 5: Solve for x
   x = 4,949,574,581,688,678/64,982,841.86
6. Step 6: Final answer
   x = 76,167,407.27