Finding the Fourth Proportional to 56,971,459.56, 78,620,507.82 and 30,866,626.20

Step by Step Solution

1. Step 1: Write the proportion equation
   56,971,459.56 : 78,620,507.82 = 30,866,626.20 : x
2. Step 2: Convert to fraction form
   56,971,459.56/78,620,507.82 = 30,866,626.20/x
3. Step 3: Cross multiply
   56,971,459.56x = 78,620,507.82 × 30,866,626.20
4. Step 4: Simplify right side
   56,971,459.56x = 2,426,749,826,534,116.50
5. Step 5: Solve for x
   x = 2,426,749,826,534,116.50/56,971,459.56
6. Step 6: Final answer
   x = 42,595,886.52