Finding the Fourth Proportional to 36,978,577.12, 55,359,934.80 and 21,578,675.68

Step by Step Solution

1. Step 1: Write the proportion equation
   36,978,577.12 : 55,359,934.80 = 21,578,675.68 : x
2. Step 2: Convert to fraction form
   36,978,577.12/55,359,934.80 = 21,578,675.68/x
3. Step 3: Cross multiply
   36,978,577.12x = 55,359,934.80 × 21,578,675.68
4. Step 4: Simplify right side
   36,978,577.12x = 1,194,594,078,715,145.50
5. Step 5: Solve for x
   x = 1,194,594,078,715,145.50/36,978,577.12
6. Step 6: Final answer
   x = 32,305,030.96