Finding the Fourth Proportional to 100,776,408.51, 139,062,577.50 and 56,119,006.10

Step by Step Solution

1. Step 1: Write the proportion equation
   100,776,408.51 : 139,062,577.50 = 56,119,006.10 : x
2. Step 2: Convert to fraction form
   100,776,408.51/139,062,577.50 = 56,119,006.10/x
3. Step 3: Cross multiply
   100,776,408.51x = 139,062,577.50 × 56,119,006.10
4. Step 4: Simplify right side
   100,776,408.51x = 7,804,053,634,308,910
5. Step 5: Solve for x
   x = 7,804,053,634,308,910/100,776,408.51
6. Step 6: Final answer
   x = 77,439,291.10