Finding the Fourth Proportional to 40,528,978.32, 60,797,204.72 and 13,235,414.12

Step by Step Solution

1. Step 1: Write the proportion equation
   40,528,978.32 : 60,797,204.72 = 13,235,414.12 : x
2. Step 2: Convert to fraction form
   40,528,978.32/60,797,204.72 = 13,235,414.12/x
3. Step 3: Cross multiply
   40,528,978.32x = 60,797,204.72 × 13,235,414.12
4. Step 4: Simplify right side
   40,528,978.32x = 804,676,181,807,618.62
5. Step 5: Solve for x
   x = 804,676,181,807,618.62/40,528,978.32
6. Step 6: Final answer
   x = 19,854,341.64