Finding the Fourth Proportional to 56,971,456.56, 78,620,503.68 and 30,866,623.20

Step by Step Solution

1. Step 1: Write the proportion equation
   56,971,456.56 : 78,620,503.68 = 30,866,623.20 : x
2. Step 2: Convert to fraction form
   56,971,456.56/78,620,503.68 = 30,866,623.20/x
3. Step 3: Cross multiply
   56,971,456.56x = 78,620,503.68 × 30,866,623.20
4. Step 4: Simplify right side
   56,971,456.56x = 2,426,749,462,884,773.50
5. Step 5: Solve for x
   x = 2,426,749,462,884,773.50/56,971,456.56
6. Step 6: Final answer
   x = 42,595,882.38