Finding the Fourth Proportional to 56,977,170, 78,628,384.71 and 30,872,394.42

Step by Step Solution

1. Step 1: Write the proportion equation
   56,977,170 : 78,628,384.71 = 30,872,394.42 : x
2. Step 2: Convert to fraction form
   56,977,170/78,628,384.71 = 30,872,394.42/x
3. Step 3: Cross multiply
   56,977,170x = 78,628,384.71 × 30,872,394.42
4. Step 4: Simplify right side
   56,977,170x = 2,427,446,505,374,617.50
5. Step 5: Solve for x
   x = 2,427,446,505,374,617.50/56,977,170
6. Step 6: Final answer
   x = 42,603,844.76