Finding the Fourth Proportional to 56,971,457.56, 78,620,505.06 and 30,866,624.20

Step by Step Solution

1. Step 1: Write the proportion equation
   56,971,457.56 : 78,620,505.06 = 30,866,624.20 : x
2. Step 2: Convert to fraction form
   56,971,457.56/78,620,505.06 = 30,866,624.20/x
3. Step 3: Cross multiply
   56,971,457.56x = 78,620,505.06 × 30,866,624.20
4. Step 4: Simplify right side
   56,971,457.56x = 2,426,749,584,101,218.50
5. Step 5: Solve for x
   x = 2,426,749,584,101,218.50/56,971,457.56
6. Step 6: Final answer
   x = 42,595,883.76