Finding the Fourth Proportional to 77,395,085.72, 106,801,992.88 and 42,113,029.38

Step by Step Solution

1. Step 1: Write the proportion equation
   77,395,085.72 : 106,801,992.88 = 42,113,029.38 : x
2. Step 2: Convert to fraction form
   77,395,085.72/106,801,992.88 = 42,113,029.38/x
3. Step 3: Cross multiply
   77,395,085.72x = 106,801,992.88 × 42,113,029.38
4. Step 4: Simplify right side
   77,395,085.72x = 4,497,755,463,997,991
5. Step 5: Solve for x
   x = 4,497,755,463,997,991/77,395,085.72
6. Step 6: Final answer
   x = 58,114,225.50