Finding the Fourth Proportional to 59,561,351.69, 89,067,748.57 and 56,655,696.20

Step by Step Solution

1. Step 1: Write the proportion equation
   59,561,351.69 : 89,067,748.57 = 56,655,696.20 : x
2. Step 2: Convert to fraction form
   59,561,351.69/89,067,748.57 = 56,655,696.20/x
3. Step 3: Cross multiply
   59,561,351.69x = 89,067,748.57 × 56,655,696.20
4. Step 4: Simplify right side
   59,561,351.69x = 5,046,195,303,612,926
5. Step 5: Solve for x
   x = 5,046,195,303,612,926/59,561,351.69
6. Step 6: Final answer
   x = 84,722,645.82