Finding the Fourth Proportional to 123,764,128.32, 170,784,483.84 and 71,556,513.60

Step by Step Solution

1. Step 1: Write the proportion equation
   123,764,128.32 : 170,784,483.84 = 71,556,513.60 : x
2. Step 2: Convert to fraction form
   123,764,128.32/170,784,483.84 = 71,556,513.60/x
3. Step 3: Cross multiply
   123,764,128.32x = 170,784,483.84 × 71,556,513.60
4. Step 4: Simplify right side
   123,764,128.32x = 12,220,742,240,565,940
5. Step 5: Solve for x
   x = 12,220,742,240,565,940/123,764,128.32
6. Step 6: Final answer
   x = 98,742,199.43