Finding the Fourth Proportional to 132,693,447.60, 198,958,056.72 and 51,819,315.12

Step by Step Solution

1. Step 1: Write the proportion equation
   132,693,447.60 : 198,958,056.72 = 51,819,315.12 : x
2. Step 2: Convert to fraction form
   132,693,447.60/198,958,056.72 = 51,819,315.12/x
3. Step 3: Cross multiply
   132,693,447.60x = 198,958,056.72 × 51,819,315.12
4. Step 4: Simplify right side
   132,693,447.60x = 10,309,870,236,836,514
5. Step 5: Solve for x
   x = 10,309,870,236,836,514/132,693,447.60
6. Step 6: Final answer
   x = 77,696,905.34