Finding the Fourth Proportional to 78,719,061.18, 118,112,692.05 and 42,284,939.34

Step by Step Solution

1. Step 1: Write the proportion equation
   78,719,061.18 : 118,112,692.05 = 42,284,939.34 : x
2. Step 2: Convert to fraction form
   78,719,061.18/118,112,692.05 = 42,284,939.34/x
3. Step 3: Cross multiply
   78,719,061.18x = 118,112,692.05 × 42,284,939.34
4. Step 4: Simplify right side
   78,719,061.18x = 4,994,388,018,618,351
5. Step 5: Solve for x
   x = 4,994,388,018,618,351/78,719,061.18
6. Step 6: Final answer
   x = 63,445,726.41