Finding the Fourth Proportional to 61,042,582.10, 91,563,873.15 and 20,653,066.10

Step by Step Solution

1. Step 1: Write the proportion equation
   61,042,582.10 : 91,563,873.15 = 20,653,066.10 : x
2. Step 2: Convert to fraction form
   61,042,582.10/91,563,873.15 = 20,653,066.10/x
3. Step 3: Cross multiply
   61,042,582.10x = 91,563,873.15 × 20,653,066.10
4. Step 4: Simplify right side
   61,042,582.10x = 1,891,074,724,538,965.50
5. Step 5: Solve for x
   x = 1,891,074,724,538,965.50/61,042,582.10
6. Step 6: Final answer
   x = 30,979,599.15