Finding the Fourth Proportional to 101,187,427.72, 139,638,620.82 and 54,777,647.56

Step by Step Solution

1. Step 1: Write the proportion equation
   101,187,427.72 : 139,638,620.82 = 54,777,647.56 : x
2. Step 2: Convert to fraction form
   101,187,427.72/139,638,620.82 = 54,777,647.56/x
3. Step 3: Cross multiply
   101,187,427.72x = 139,638,620.82 × 54,777,647.56
4. Step 4: Simplify right side
   101,187,427.72x = 7,649,075,157,042,438
5. Step 5: Solve for x
   x = 7,649,075,157,042,438/101,187,427.72
6. Step 6: Final answer
   x = 75,593,137.70