Finding the Fourth Proportional to 64,764,892.80, 97,085,131.20 and 37,443,139.20

Step by Step Solution

1. Step 1: Write the proportion equation
   64,764,892.80 : 97,085,131.20 = 37,443,139.20 : x
2. Step 2: Convert to fraction form
   64,764,892.80/97,085,131.20 = 37,443,139.20/x
3. Step 3: Cross multiply
   64,764,892.80x = 97,085,131.20 × 37,443,139.20
4. Step 4: Simplify right side
   64,764,892.80x = 3,635,172,081,771,863.50
5. Step 5: Solve for x
   x = 3,635,172,081,771,863.50/64,764,892.80
6. Step 6: Final answer
   x = 56,128,743.90